Almost 38 weeks and all of a sudden have acid reflux

I'll be 38 weeks in 2 days and I haven't slept at all because acid reflux has been so bad. I didnt get it through out my pregnancy and never had it before pregnancy either why would all of a sudden experience it right before I'm due? could this mean something concerning? I didnt eat anything out of the ordinary. I took some tums and some pepcid as well as drank milk but it's still pretty bad I'm tired I just want to sleep😞

also baby has been moving almost all night which is not usual for her could it be making her uncomfortable?