What is happening?

I just started doing crunches to build muscle, so I bought a tool that bends my spine, increasing strain. However I have had to stop because when my head goes upside down, I get a horrible pain in my stomach that works it's way up to my head. Horrible pain. Can anyone tell me why? Also, my head goes upside down... show more I just started doing crunches to build muscle, so I bought a tool that bends my spine, increasing strain. However I have had to stop because when my head goes upside down, I get a horrible pain in my stomach that works it's way up to my head. Horrible pain. Can anyone tell me why? Also, my head goes upside down because of the tool elevation and my heads resting position.
1 answer 1