It feels like you're doing a crunch using only your sto
mach muscles....or it feels like you're tightening a belt around your belly from the back. It can be sharp and painful, or it can just be a lot of pressure, generally radiating from your mid-back, down across to
the lower-mid part of your belly. after awhile, you'll be able to
see your belly harden if it really is contraction
s. If you think you are having them, call your docto
r and they will advise you. Good luck!!!