Adele,
None of us can diagnose your problems...only tell you what we experienced. It seems like your problems are so wide spread that it is very hard to discern what is going. The burning and white tongue sound like thrush and you would be a prime candidate since you have been on antibiotics.
In Bill's case, his symptoms were: sore throat, shooting pains in his ear, very loud snoring and lots of phlegm. We thought he was suffering from allergies when in fact he had a large tumor on his right tonsil and on the base of the right side of his tongue. His symptoms did not come and go.
You will get lots of answers from people about their symptoms and from some that had nothing but an enlarged lymph node. Everyone is different. You have to get your own diagnosis and the sooner the better.
Good luck with everything,
Deb