Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you are suffering from acid reflux along with excess formation of intestinal gas..
The bitter taste in mouth seems to be due to the taste of acid that has refluxed from the stomach to throat and mouth..
I would suggest you to
consult a Gastroenterologist and get evaluated and a thorough clinical examination and investigation like upper G.I Endoscopy,
Colonoscopy etc can help in diagnosis and treatment can be done accordingly..
You can be advised to take
Simethicone to reduce intestinal gas and bloating..
You can be advised to take Proton Pump Inhibitors like
Pantoprazole and Omeprazole, antacids like
Milk of Magnesia and also dietary modifications like small frequent meals, avoid spicy and acidic foods, drink plenty of water, take probiotics like Yoghurt in diet, take walk after meals, sleep with head slightly raised as compared to feet and recline in left lateral position..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.