Anyone else dealing with severe heartburn?!

Brionna
My LO is squishing his butt up so high that it's making my heartburn unbearable! Not only does it burn like hell but it leaves my chest so sore and tight. Anyone else have it this bad?
 
Zantac helps a little bit, but does anyone know of anything else that's safe and does the trick? Have you made diet changes? If so, what helped?