Prior to my injury I was taking graduate classes full time and working full time. My accident happened in the middle of a Spring semester. At that point, I took an incomplete in my two classes from that semester and took a medical leave from my university.

The following late spring, I worked to complete my coursework from that incomplete semester. With a lot of help and understanding from my professors, I was able to pass both courses.

I then met with my university's disability resources department. That fall I started taking 3 credits at a time. I meet with my disability advisor prior to the beginning of the semester with the syllabus for the course I'll be taking. Then we come up with a list of accommodations to help me be successful throughout the semester. Some of these have included:
1) Ear plugs to drown out background noise
2) Sunglasses to deal with fluorescent lighting
3) Taking tests in the Disability Office to lessen distractions & extended time for test taking
4) Being able to use a word processor to organize my thoughts for written exams.
5) Tape recording lectures so I can review them later if I had trouble keeping up
6) Being able to miss class, leave class early etc if my symptoms were flaring up, without penalty to my grade.
7) Being able to take breaks from class without penalty, (such as going to the bathroom and sitting in the quiet for a few minutes)
8) Extended completion time on assignments.

I've found most of my professors to be really understanding. (I am however getting a Masters in Special Ed.) Any time I would have a flare in symptoms, (this led to days of migraines, seizures, need for bedrest), all I had to do was email my professors and they were wonderful about letting me get my assignment to them whenever I was feeling better.

I've found that if you reach out to your professors before classes begin, explain your situation and your symptoms, many see this as you taking responsibility and therefore are accommodating if you start to run into trouble.

Hope that helps. You won't know until you try it. I will say, I was shocked by how the environment of my university, (urban campus, large classes sizes, fluorescent lighting really wore me down at first). Think about this as well, before you decide if you are ready.