As an adjunct professor, and ADA Advocate, I work in post secondary schools and have seen a a trend in colleges and universities working with students with invisible disabilities. The process is different than high school. There is more responsibility on you as the student to self-identify and seek accommodations from your school's ADA Coordinator. Negotiating for your invisible disabilities is new territory for many schools, but remember, you have the power of the Americans with Disabilities Act behind you! KNOW YOUR RIGHTS!
Here is an excellent article to start published by:
U.S. Department of Education, Office for Civil Rights, Students With Disabilities Preparing for Postsecondary Education: Know Your Rights and Responsibilities, Washington, D.C., 2011.
http://www2.ed.gov/about/offices/list/ocr/transition.html