Chronic Soft Tissue Injury that wont get better/BOTOX injections

To all that have any information on this:

I will try to keep this as brief as possible and only give the relevant information.  About 2.5 years ago I injured my neck doing lunge exercises at the gym.  I felt a blinding pain shoot up from the thorasic region of my back thru my neck and into my head...I became dizzy and almost passed out.  From there the I have seen almost every doc under the sun and had every possible test you can imagine to try to get healthy again.(MRI...bone scan - you name it...all revealed nothing)  

The nature of my injury has changed over the years from acute chronic neck pain to chronic myofascial pain all over my back, neck, head, chest and face.  To make matters worse, no one can really give me an accurate diagnosis as to exactly what is wrong with me.  

After prolonged physical therapy...I was advised to try a chiropractor again even tho I did not want to bc another chiropractor had injured me even worse.  I went reluctenly, and even tho the chiro helped my neck somewhat...I have an entirely different issue now...As I said the nature and dynamic of exactly what hurts, when it hurts and the triggers that cause pain are so inconsistent it is hard to describe.

However, at present...My pain has dramatically decreased to the point if I do not exercise or do anything to crazy then it is very managable.  Since I saw that last chiro...what happened is this...now it seems that my pain is on the entrire right side of my body and not on the left at all.  If I try to walk any distance like a mile or two for exercise...my entire right side will flare up thru my leg, arm, back, neck and head. (referred pain)  My right side becomes completely fatigued and numb.  

After ruling out many things...my docs tell me I have a soft tissue injury.  I guess it took 2 years to figure that out!!  The only thing that seems to make it feel better is when my physical therapist performs what is called "myofascial release" on my neck and other areas of my body.  My physical therapist is amazing he is the only one that can make me feel better.  He manipulates many areas manually and even cracks alignment into place in my back, neck and ribs and pelvic area.  

My injury is a mystery to me and everyone else because...my body will not seem to take to the adjustments and all the pt.  After my Physical therapist works on me...it usually takes about a day for my pain to release and then I will feel pretty good for about 5 days...But if I try to do any sort of exercise....it flares right up...I find it odd that after going to chiro...it is like the focal point of the pain shifted from my neck to my upper back on the right side and now I cant walk without everything flaring up...Before the chiro I was able to walk any distance with no problem....so it was like I traded one eveil for another...my neck feels better than it did, but now I cant even walk for exercise

At present...I am scheduled for botox injections in my neck.  My hope is that...somehow these over active muscles in my neck and back will release which will some how cause the problem in my right side to realase everything and all my problems will go away.  My muscles are chronically tight which I think is why I am having all these problems.  

My questions are these:

1.)  Is there anyone out there with an experience similar to mine that can offer any insight in the way of other doctors I should see?  Is there anyone out there who has had issues like these and one day they just miraculously went away?  Any help would be greatly appreciated

2.)  If you are a Doctor...What can you tell me about soft tissue injuries?  Who is the expert that I should see.  Is it possible that the botox can cause a complete recovery.  Will I ever get better.  I hate my life right now...This is a cruel reality.  I know that there are people going thru alot worse but...all I want is to be better.    

I used to be a very active person who worked out and ran 5 miles 4 times a week.  I cannot work out or exercise at all anymore...this is like hell on earth for me...my entire life has been turned upside down and all I want is to get better and at least know what is wrong with me...PLEASE HELP!!