Welcome Denzel. I had digestive issues & many other symptoms when I first quit. After a few weeks everything was much better. We beat ourselves up badly - we need time to heal. (I have to repeat what the others said - to be safe get checked out - there's no way we can know for sure what's going on.)
I hope you'll stay with us for awhile.
Congrats on your decision to quit & your 3 days sober. It will get easier.