### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a sore tongue (on the left side) that has been sore for 3 years. There is nothing you can see but it is sore. I think it started after I had been taking Prilosec for about 15 years. Doctors tell me it doesn t have anything to do with it. I have seen my dentist , 2 oral surgeons, ENT, and they just say they can t see anything. It is really annoying. Any ideas?

### output:

Hello and thank you for your question. For a sore tongue that has been sore for three years but does not have any physical markings I would suggest that the tongue may not be the source of the pain.  You may be experiencing what is called referred pain.  In other words you feel the pain in your tongue, but it may be originating in another part of your body, like an ulcer in your stomach, or a tumor in your jaw (these are just examples not me stating you have these).  Your tongue pain may be caused by glossies, inflammation in the tongue as well.  Causes of this include vitamin B12 deficiency, Progress syn Chat Doctor.  Since you are chronically taking Prilosec, this may be due to a vitamin B12 deficiency.  According to one study I read when used over a long period of time, such as three years or more, Prilosec can cause a vitamin B-12 deficiency. Signs of a B-12 deficiency include a sore tongue, unusual and unexplained weakness and numbness and tingling in the hands and feet. I hope this helps you in your discovery of your problem.  I recommend taking a Multi-B vitamin and see if the issue subsides in a few weeks. Best wishes and good health 