Legal Questions

Can a university that I'm a professor at take classes away from me because I'm handicapped?

I am a handicapped professor at local college. I have Multiple Sclerosis. Before I got sick, I was an energetic lecturer, I was writing on the board. The MS did not affect my cognitive skills, but it affected the way I teach. Now I have to sit and use power point slides and and send the power point slides to the students. I also use a pointer. Now I am also using a microphone to help with my voice projections. Normally, I would teach three classes per semester, but two were taken away from me and now I teach only one course per semester.