Help please

Anyone get twitching in their second stomach each day but not pregnant? I never been pregnant so it worries me why I get twitching that feels like baby kicks.

I'm on Amitriptyline for bladder pain. I get twitches in my eyes, arms, legs and back too.

I have stil been getting periods and had negative hpts.

Any advise?? I would be 28 weeks if I was too be pregnant and I don't have a baby bump or anything so I don't think I am.

I had a MRI of my pelvic area and nothing was seen.