How did the stomach ulcer feel? Like a dull ache in the same place. I had some minor withdrawal symptoms over the past year, and my first symptom was extreme vomiting, which would irritate the tear/ulcer, causing bleeding. Then I couldn't sleep lying down for a few days because lying down hurt. Eating hurt.
Oh yeah, smoking hurt because I think some of the smoke goes into your stomach when you inhale. It really isn't pleasant.
Other than that, extreme fatigue, a weird gushing noise in my head, skin lesions that never heal or do heal and look like first degree burns for MONTHS. Palms still red, still never feel hungry.