Hello jbc and welcome
Whilst there is a risk of needle tracking the incidents are apparently very very small. Having checked it out on the internet you are probably aware of the percentage.
The biopsy itself can cause infection and infection can give you weird and not so wonderful pain in places you wouldn't expect.
So.... you mention a bowel blockage. Was this an actual blockage that had to be removed or was it a case of severe constipation?
As far as the other pains are concerned, it's chicken and egg time.
Do you have pain as a direct result of the biopsy (ie infection - not to mention the actual physical discomfort that needles plunged into a very sensitive area will cause) or are they caused by stressing about the biopsy?
I agree with the others. Ask your specialist nurse or the nurses on this site for advice. They will have the experience to know whether you should be concerned.
I hope you feel better soon