<s>[INST] I saw my dentist today  who said he has never seen lumps like the ones I have at the back of my tounge.  They are not red or painful, just raised.  I do have acid reflux and take prilosec daily.  I have had a lap band for 5 years and have had 2 endoscopies in the past 6 months.  I have a bitter tast in my mouth that never goes away. I am 50 years old.and am in menopause. [/INST] Hello, Thanks for your query.Bumps on back of tongue are known as papillae & they are natural. In case they are painful & inflamed,then it can be due to various reasons:- -trauma -allergy -canker sores -throat infection -leukoplakia -scarlet fever You need to rule out the exact cause by visiting dentist & get it treated accordingly. For temporary relief you may apply topical anesthetic gel like dologel 2-3times a day. Consult your dentist in case problem persists.I do hope that you have found something helpful and I will be glad to answer any further query.Take care </s>