Hello. It s the first time I use this so I am not really sure what to expect. I am male, 21 years old. And I have a question concerning a hard lump I found when palpating the posterior wall of the pharynx. It s round and well limited but really hard like bone, just behind the uvula. I found it on palpation. On inspection i can t really see it. But it s a bit whitish in colour. What could it be? I have history with bacterial tonsillitis (really big palatine tonsils), sinnusitis and posterior drop. Recently, a few months back I have found my tongue to be a little bit rough on the back and kind of cracked.