Tinnitus is an ear injury issue and is not related to anxiety, although it can make people anxious if you think about it. I have it and it is not something I want to think about because it is permanent.
Only your counselor can help you figure if you have floaters or derealization. I am doubting that people can figure if they were going insane so perhaps you are worrying too much. It is best to stick with the one on one that you are getting or find another person, because no one can diagnose you from here.
Does headache and nausea ever follow the eye disturbances?