Hi DB - you've come to the right place for lots of the best and very latest accurate info, plus some very compassionate and helpful people to help you through the waiting and afterwards IF it is cancer. My son was only 33 when he had a sore under his tongue and he put off seeing a doctor about it for several months but he is doing fine now almost 6 years later. When you doctor said "pre-cancerous" it probably means that IF it is cancer that it is in a very early stage. Whatever the results of the biopsy, you will have all the support you want with everyone here. The waiting is absolutely the worst so it's good you have been keeping busy. Hope everything goes well. Let us know how the biopsy goes tomorrow.