I understand your concern.
Well as you describe,it sounds Gastroesophageal acid reflux.
You should try OTC Prilosec and Maalox.
Also start metamucil and mylanta gas.
You should eat a bland diet.
And hydrate yourself with plenty of fluids.
If your symptoms'll not improve in next 2-3 days with such self care measures then see your doctor for a clinical examination and undergo Ultrasound abdomen,urinalysis,liver function test for further evaluation and management.
Other possible causes may include Viral infection,Gall bladder disease.
Let me know if you have any further query so we can discuss it thoroughly in every aspect.
It’s my pleasure to continue this conversation until you satisfy.
May I help you further?
Please to not forget a positive rating and avoid poor/bad rating.
Bonus is highly appreciated.
Waiting for your response.