Sweating and severe heart burn

I’m 32.3weeks pregnant. the past few days I’ve had severe heartburn, tums are not working anymore. I’ve taken my acid indigestion tablets my dr prescribed a few weeks ago and those aren’t working. im drinking endless amounts of milk and I just can’t get any relief. It’s keeping me up at night. Also I’m constantly hot. I wake up sweating profusely. My next dr appointment is next Wednesday, I’m not sure if this is normal or should I call to get an earlier appointment?