I get a stabbin pain in my left foot on the top and it travels up into my rectum. So there is shooting, stabbing pain in rectum and top of left foot. What could this be. It comes and goes.

It could be your spine, you can have some pinched nerves. Go to the site dr.tester. Find the picture of the spine it will tell you what each spot affects. Good luck!

You may have your foot up your arse!

Have you considered that you may have your foot up your arse?