Post-Colonoscopy Issues - Serious?

Hi. Hoping a professional or someone knowledgeable can advise. Had colonoscopy 8 days ago, all went okay. 5 adenomas removed, the larger troublesome one they knew about was thought cancerous and sent for urgent biopsy (no news yet but I'm not anxious about this situation). Regardless, I have to have a sigmoidoscopy to remove it asap.

Post colo experience was pretty much as they told me to expect. But whenever I have a bowel movement - which is still infrequent since procedure - I don't feel too well. Aside from the blood and discomfort I had previously due to this growth - though there seems to be more blood now - I feel tired after and a bit nauseous, and my temperature goes up, but not seriously.