I would go to your GP and ask for a referral to an ENT with experience in Oral cancer - this is where you need to be.
Chances are this is not cancerous, however, you want to be monitored by someone who knows their stuff and is familiar with oral cancer in the early stages. Do it asap. particularly not that you are having pain.
hugs and best of luck


Cheryl : Irritation - 2004 BX: 6/2008 : Inflam. BX: 12/10, DX: 12/10 : SCC - LS tongue well dif. T2N1M0. 2/11 hemigloss + recon. : PND - 40 nodes - 39 clear. 3/11 - 5/11 IMRT 33 + cis x2, PEG 3/28/11 - 5/19/11 3 head, 2 chest scans - clear(fingers crossed) HPV-, No smoke, drink, or drugs, Vegan