I was placed on Prednisone (5mg), for 6 days. It is the 21 package. However, before realizing that this was a bad idea, I stopped taking the medication yesterday (midcycle). I just now took one because I felt nauseous, and I wasnt sure if it was withdrawl. Was this a bad idea? Also, how bad does 5 mg of prednisone weaken the immune system. Thank you so much for your help.