Yes, welcome to PC.

I had trouble with taste and smell, etc. when on narcotics from my appendectomy. Could be your meds are messing with you, they can do that.

I have my acid reflux problems solved with Pepcid Compete (only use one every 12 hours). I don't need them daily/routinely though but I also don't have a problem as severe as yours sounds.

I would imagine too, like lil_bit says, the losing/gaining weight stuff and changing diets, etc. is doing a number on your body.