Janey,
I would really recommend getting your medical records and making an appointment with an ENT, and continuing with one. I had leukoplakia, white patches, on my tongue. I had it biopsied then three years later it became cancerous. I had been seeing an ENT once a year to check on it until it changed. Don't be afraid to get these things checked out, it's better to know and get it taken care of before it spreads. Best of luck to you!