Third trimester and still having acid reflux.

I’m currently beginning my 3rd trimester and I’ve always suffered with acid reflux since the beginning of my pregnancy. It totally sucks!

I’ve been prescribed Zantac and acid reducer pills... but I was wondering if taking too much (or in other words daily) those pills, I do switch from both will it harm my baby?

My OB took away mylanta & tums because she said those are category C in pregnancy which isn’t safe.

I don’t know what to do anymore, it gets to the point where it’s sitting on my throat and i just want to vomit or it comes to the point where I can’t sleep at night.

Help?