Rule out appendicitis
Thanks for your query.
If the diagnosis of appendicitis is not confirmed, I would consider it essential to do so. Not getting the surgery with confirmed appendicitis is not a good idea. The infected appendix
can get complicated into abscess
and can cause serious life threatening problems.
Working out in gym can be scheduled according to your comfort, only considering the times which you are symptom free. Also work out only after completely evacuating your rectum
Wish you good health.