Has anyone been diagnosed with GERD during pregnancy? I go through tums so fast, because I take all six that I'm allowed every day. I've dealt with heartburn before I got pregnant, but never this bad. I cannot lay on my left side or I immediately get stomach acid at the back of my throat. Every night I'm swallowing down stomach acid that comes all the way up into my mouth. I feel like I'm dying and I'm scared that between this and my hyperemesis, I'm gonna get so many ulcers.