You have explained things very well.
However, what care have you received?
What testing have you received? What specialists have you seen or received care from, and what medications have they tried , or are you on (if any)?
Are you receiving any therapy?
Secondly, on these forums there are links for some very helpful sites for perusal to information that may help; as well as a link to a Vitamin/Supplement thread that Mark has started that is very helpful, providing nutrition support to the brain injured...... seems we all need quite a bit of this type of support which is not always provided through Allopathic physician recommendations - they aren't always into supplemental care, nor very aware of its usefulness for the most part.
One very good link for information, in my opinion is
Brainline.Org , read through and see what you think.
Many others may post and offer other links and advice. We are all here to help each other..........
Best wishes...........
Your first step is this one, welcome.