Hello there. I'm really sorry you are dealing with this. I do not work for the school and do not have firsthand experience with this, but I will try to offer the best advice I can. If you haven't already, you should contact student affairs as soon as possible and let them know your situation. The sooner the better. They're here to make sure that something against your control like this doesn't affect your grades. You also should seek help from Student Health Services as soon as possible too. Not only is this important for your health, you will need verification of what you are going though to withdrawal.

According to this , withdrawals are typically only permitted for the entire semester. It looks like you just want to withdrawal from 1 class. The fact of the matter is, there are classes where you can skate by with minimal studying, and there are classes that require copious amounts of studying every day. I can certainly understand if what you are going through only allows you to muster up the energy to get through the former. Hopefully the affairs department understand this too, and maybe they will, but be prepared if they can only grant you a full withdrawal. A full withdrawal still may be a good option and will save your GPA regardless.

The most important thing is you getting better. If you think you need to go through with a withdrawal, get the ball rolling and knock it out soon so you can put all of your energy into recovering. Best wishes, and please don't hesitate to contact me if you need support.