Gastric pain in early pregnancy

yes I experience same issue of gastric and nausea during 1st trimester as early as 7 weeks. After consume gaviscon I'm OK. but can't rely on that for too long. I also apply yuyee oil at night and cover blanket with compression socks and it soothes quite a bit. have plenty of fluid and fruits as well. now on 14 weeks the gastric comes back with back aches. I guess it should be normal in pregnancy. if too unbearable, suggest better consult gynae for prescription.