Welcome to HCM,
You are having Acid peptic disorder which is most likely cause of your discomfort and nausea
is not related to pregnancy
You may take small but frequent meals with increasing water intake.
Please visit a physician who after examination if appropriate will suggest you a Upper G.I endoscopy
to know if you have any ulcers or not.
This can be treated with prescription medicines for 4 to 6 weeks.
You should also take pre biotic and probiotics to improve gut health.
In diet you can take curd and also take up regular walking and some yoga
in your daily routine will help greatly .