i dont think this has anything to do with my condtition but thought id ask if anyone has had it before, for the last week or so ive noticed a lump on the roof of my mouth its not painful and i can rub my tongue on it, i cant see it and my bf says its probs just an ulcer but ive had plenty of ulcers to know this is not one! my teeth are in bad condition ive got loads of fillings and 2 root canals. my gums have started bleeding when brushing too. what should i do? does anyone know what it could be?