Sorry to hear of your troubles. It could be anything, and understand your concern if it's of cancer, but only a doctor can help identify it. I heard the average recurrence, H&N cancer is like 7.8 months, rarely in two months, unless its aggressive, so that can be in your favor, plus any swelling from your recent surgery is possible, and usually the anterior tongue cancer does go to the base of tongue, as far as I know, if that helps, but anything is possible. Hopefully your ENT visit be quick. Good luck.