Hey Alpaca. My sister developed a lump on her real tongue right next to the flap. They took her right in and did a biopsy which came back as inflammation. I think if u would call your surgeon they will take you in and do the same. I also read about granulomas developing too if u want to look that up. I would call and get a biopsy done ASAP. The quicker you get in the faster you are to knowing what it is and can solve the worrying you are dealing with right now. Please keep us posted.