The question about sensory integration problems was sensible, but you have already investigated this. I really don't see a reason to revisit it now, so soon after the other evaluation.
It would be reasonable to arrange an evaluation with a peduatric menatl health clinician for the purpose of taking a look at what appear to be symptoms of an anxiety disorder. It may be that the advice you receive is to simply carry on, exposing him to normal activities for a child his age. Or, some intervention might be recommended. Let the chips fall where they may; go ahead and have the evaluation. There's nothing to lose by doing so.
Be consistent in returning your son to his own bed, otherwise you reinforce that behavior.
We had some of those same problems with my son, now almost 8. He had night terrors from the age of 2, and would wake up screaming. I would either let him into bed with us, or go to his room and sleep with him until he went back to sleep, depending on how early in the AM it was. (I would let him stay if it was only an hour or so before time to get up, otherwise take him back.) I don't see the harm in comforting your child this way. After all, what are you really telling him except that you are there for him whenever he needs you. He gradually started outgrowing it around 5 or 6, and now he only comes in once every 4-6 months. He was also very introverted, even crying if I left him with his Dad so I could run to the grocery. We just continued to leave him on occasion, and he slowly outgrew that as well. We put him in preschool 2 days/week to help ease the separation anxiety at 4 years old. He is now a fairly well adjusted child, although still very reserved in new situations. We just figure it is his personality.
I would try to figure out what caused the regression. Did he start a new classroom? Does he like his teachers and friends? It may be worth seeing a child psychologist to help you with strategies to ease his fears and help with transitions. Also, keep in mind that if he had hearing problems, he may have some catching up to do to be emotionally on the same level as his peers.
Last, I will tell you that my son was recently diagnosed ADD. In working with the psychologist, we learned that a lot of his behaviors are strong indicators of ADD. Especially the poor self-confidence, frequent melt-downs, shyness, and difficulty interacting with his peers. Other signs he exhibited were constantly messing with his hands and feet, inability to sit still even when eating or reading books, interrupting and constant talking at home, conversation shifts constantly, and procrastination. You may want to keep that in the back of your mind when talking to someone.
Hope you find some of this useful. Good luck!
Thanks for the feedback. ADD is one thing we do keep in mind as there is some family history there. We do not think he likes his teacher and are pretty sure that is contributory. What doesn't fit for me with respect to ADD is that he actually is quite good at sticking with what he likes to do. He will play baseball for hours. He is very attetive at his skating and swimming lessons. When we read books, the books he is intereted in are not typical 4 year old stories (Charlotte's Web with lots of words and few pictures for example). He sites perfectly still and will let you read to him for hours.
You said that your son is now well adjusted but that he only recently has been diagnosed ADD, which tells me that his ADD is being managed well. If you can share, what specifically are you actually doing? Also, how is he doing with peer relationships?
My son could also perform activities for long periods if it was something he was interested in. He would build traintracks or play cars for hours, which was one reason it took so long for us to make the decision to have him evaluated. He only turned 5 a few months before starting kindergarten, and his teachers kept saying that maybe he was just an immature kindergartener or first grader. In 2nd grade this year, he was having an extremely hard time finishing his work, and would take 4 to 5 hours to complete his homework (20 - 30 min max woth of work.) We decided to take him to a child psychologist for the evaluation, and to work with him on his self-confidence, which had gotten so low that grandparents and teachers were noticing it. We found out that is actually a big warning sign for ADD as they get older and realize they can't perform as well as their peers. He was diagnosed with moderate attention deficit, and mild to no hyperactivity. Many people think if the child isn't hyper, then they do not have ADD, but the two are not always together. I would suggest looking at some of the ADHD websites, especially webmd.com, to see the symptoms and characteristics of ADHD. This was helpful for us in deciding whether or not to seek a diagnosis, because it was as if they were looking at my child when writing it. Peer relationships were never a big issue with him, but he did do better when just with one other friend. Group situations would stress him out, and often lead to a melt down, which is another warning sign.
I would suggest 2 things to you. First, I would see about moving him to another classroom if there is one available. His being stressed out daily because he doesn't like his teacher will only make his problems worse as far as separating and controlling his own behaviors. The hand clapping is his way of expressing frustration, which is probably why his teacher sees it more than you. Second, I would educate myself on ADD. If you feel that this is a possibility, there are many suggestions and resources for behavior modification and socialization. I would hold off on having him tested until he is in school, unless you are positive he has it, though. He is still very young, and could lead to misdiagnosis.
Two interesting things we did learn, though. ADD kids are generally higher intelligence. My son is 2nd grade, yet his reading and math are on 3rd grade level. ADD kids are generally more creative, and excel at things such as music and art. (Although not the coloring sheets they get so much in kindergarten. LOL)
After mulling it over for quite some time now, we made the leap and pulled our son out of his present pre-school. The final straws were a conversation this weekend where he mentioned that one of his teachers is "mean to him" and scares him, followed by a tearful breakdown this morning that "school is big and scary" and an answer to "What is big and scary?" or "MRs. ___".
We have enrolled him in Kindergarten at another school for next year. We are also sending him to a summer program there (all play) in hopes of making the transition easier. Our primary concern at this point is that he is able to get his confidence back up and not think that school is a place where scary people reside.
We believe that SI or ADD is a minor possibility, but our gut feel is no at this point. He is scheduled for another evaluation in May and we'll see what the outcome of that is.
For what its worth, I think you made a great decision pulling him out of his current preschool. You never want your child to feel threatened by anything, but especially not his teacher or school. I would take it slow adjusting him to his new school if you have the ability to do so (I know that isn't possible if both parents work), maybe taking him a few hours at a time the first couple of times. Also, ADD is one of those things that only gets more obvious once they start school, and go up through the grades. You will know in your heart if that is the case as he gets older. You may be really surprised at just how many of his issues clear up once he gets settled into a new school, and learns to trust his new teacher. Best of luck to all of you!