My son is in pain and not doing well from i believe rectal prolapse and i'm not sure what to do hes resistant to seeing a dr?

Your call. I believe the last time a kid should decide what was in his best interest was when he was old enough to talk. If this is true it cab get worse & will require intervention by a skilled provider. If not, it might resolve, but when to act is only something you can decide.

It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. From what you described it would be prudent to see a doctor. Wish you and your son good health!