omg this heartburn is killing me

Bi
Anyone else having severe heartburn I mean 24/7 no relief at all. I'm 37.4 wks and I'll take any pain over this heartburn it's horrific!! 
I'm taking my tablets when I'm told plus numerous chewables in between. Not sleeping much 2-3 hrs if I can that is. 
Ahhhhhhhhhhhhhh