Hi!
It sounds like you want to try this, so correct me if I misunderstood. I have done similar things. Start out wearing out to a place where you don't have to be for long and where not many people will know you. Most disposables are not detectable so don't go for bulk. Plastic pants over top of them will help cut down the noise. Try wearing while you go for a haircut, or out to the grocery store. As far as your class goes, it may depend on how many people are in it and how close you are to each other. When I went to University, we had huge classes, so you didn't know everyone and it was easy to wear. I did however have a lot of lab work to do and that was impossible to wear during.
Probably if you can wear to class and leave right after to get home, you won't have any trouble. If you have a lot of friends in class, you may need to be a bit more careful.
All the best for whatever you choose.