katherine
15 months is a long time...a lot of doctors and a lot of wasted money whether you have to pay or you have insurance or your government pays. there are many different kinds of burning...a nerve burning is different from the burn you get from reflux. the ache on the left side of your head could be indicative of a nerve thing as well...you should have your brain looked (CT or MRI) to make sure you don't have any lesions anywhere...if that is ruled out, then keep checking with the ENT doctors...there should be one out there that can give you a name for your condition.