Hi,
How are you?
It seems to be a bout of GERD or gastro esophageal reflux disease. There is acid reflux in the throat which can come up to the mouth. It is frequently associated with nausea and heartburn.
I would suggest you take OTC antacids like nexium. Drink lots of water, keep your head elevated at night by using a pillow, eat your dinner two hrs before bedtime, and avboid carbonated drinks and outside food. Do keep us posted!
This could be caused by GRD, acid refux, or poor diet. Your doctor could help you.
I have had acid reflux for two years and my doctor told me to take Prilosec OTC. I have been taking this for about a year now and I have no problems with my acid reflux.
Only your doctor can tell you what is causing your problem and what is the best treatment plan for you.