From past experience Amanda, universities can be really accommodating. Actually, in this case, it will be a really good thing that you talk to a doctor because you will need the paperwork from him to have a leave of absence or a reduced workload without penalty. They will stop the clock and you can resume when you feel better with no black marks on your record. At this point, your health is the most important priority you have to think of. Hope you get all the help you need to get better.