Indigestion!?! Help!!

Kristin • I`m 36. Have been married 7 years. We have been trying to conceive # 2 since October 2018.
I've never had indigestion before so I'm assuming that is what I'm experiencing. Just when my nausea seems to be easing up....indigestion has hit hard! It's almost like a tight feeling in my chest and lump in my throat, burping, and it makes me feel like I want to throw up. Any ideas on how to relieve it. I'm having problems getting any sleep at night.