I've been having bloody mucus in stools for 2 months. Colonoscopy was negative. Would you get 2nd opinion? Taking 1000 mg cell cept daily for lupus

2nd opinion. These symptoms can only be adequately addressed by your doctor in real-time (face-to-face). Only after a thorogh evaluation, possibly including labs and other studies, can he/she determine what's wrong and what to do about it.