Heartburn can come from when a particular valve/muscle (sphincter I think ??) is too relaxed and, thus, you get symptoms. It may be that the meds are relaxing everything a bit more than usual still and, thus, along with some anxiety that must be there if even underlying, can be a trigger for the nasty thing to rear its head.
My son was on Prevacid for 3 yrs with severe reflux (GER)and finally outgrew it .... I have too much exp. with reflux in my kids.
Cheryl
I had some problem like this for about 2 weeks after the surgery. My doctor felt it had something to do with the anesthetic...
I hope you can rest well tonight!