I wanted to update my situation in hopes that it may be helpful to someone who develops a spot under their tongue. Have been doing weekly visual inspections for over a year and all is well. Dental visits have been normal. I returned to the oral surgeon in June 2013 for a follow up and then in February 2014. Doctor released me and said he saw no reason to return. He encouraged me to continue to visit my dentist twice a year and do a self exam every week for the rest of my life. If I notice any changes, I should call him ASAP. It still puzzles me that I developed this spot since I had no risk factors.I feel very blessed and am grateful for the support and information I received from the wonderful people on this site. Thank you!!