Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
No I don't think you are pregnant and it appears to be acid peptic disease
for which take a proton pump
inhibitor like rabeprazole
along with a prokinetic agent like domperidone
I hope I have answered your query and this will help you. If you have any further query I will be happy to answer that too. Remain in touch and get-well soon.