Hey,
I had that problems too only I'm bipolar. Some of my teachers knew and some of them didn't. Usually they aren't going to talk to you about it unless you approach them. The most you are going to get is a "How are you doing?" sort of answer. It is very awkward of them and somewhat unprofessional to ask what they can do to help you. YOU have to ask THEM.

Horrible I know. When I started losing my grades in school the two things I had/have to remember are 1.) It's not the end of the world ever... and 2.) Don't give up. I can't connect assignments the class then the whole year. I have to start looking at each assignment as just one that are slowly being strung together. It's a lot easier to worry about one small thing then having it seem so important to the big picture--the big picture can always change.

I would say you should go see a guidance councilor or someone in the educational field. P-docs and T's are awesome in some ways but when it comes to the ins and outs of school and education they can be somewhat, if not completely, clueless.

Best,

Lillyleaf