Hi Judy! So sorry to hear about what you are going through. My sister has also been going through what you have. 7 moths ago the sore came on her tongue and dr perscribed antibiotics. They worked to help it go away alittle but it always came back. She the. Went to an ENT who did a basic biopsy which came back negitive. They gave more antibiotc and sent her on her way. It soon became to painful for her to eat and she became nausea and dehydrated. She then went to the ER and they admitted her for 3 days. She had another ENT and infectious disease dr look at her and said it was nothing. That was the beginning of March. She wouldn't give up and found another ENT to look at her who scheduled her for a deep tissue biopsy 3 days later. During surgery he took a frozen section biopsy and we got the results of cancer! This was one week ago and now we are going to NYC for her treatment which we do not know what will be as of yet. I don't mean to worry you but PLEASE be persistant on this. You can have a negitive biopsy then positive. My sister is proof. She has also been battling for 7 months. Her blood work was always perfect too. Hope this helps and please keep us posted!!