Past two weeks have been running a fever on and off as high 101.5. no bowel movement for a week and now nausea and increase in passing gas ?

Seek doctor quickly: It sounds like you need to be evaluated urgently by a doctor and the appropriate test and treatment to be started soon. I hope this helps and yiu improve soon.

See your provider: These may be symptoms of serious medical problem. It's important that you consult your family primary care provider. If you don't have one, you need to find one pronto.