How To Treat Indigestion During Pregnancy?

I am 22 weeks pregnant and I had indigestion for about a day I used the bathroom, next day I felt weak, legs felt weak, and every time I had to burp I felt nauseous and couldn t get a full meal down but it only lasted about 2 days. I feel much better now. But before all that my baby was very active and now she s not as active but I feel her a couple of time in the day. Is she OK ? And was I experiencing indigestion??