hmm...how long have you had them? ....and where exactly are they? ....are they where hair grows? ....if so, then yes they could be ingrown hairs...do you shave/wax or w/e at all? cos that would also increase your chance of getting ingrown hairs....however, if its nearly the size of a pea then it sounds as though it might be infected....do they hurt at all?
sorry, its like 20 qu's
...you dont have to answer anything you dont want to
and i understand how you feel about talking to your mum....thats no worries
w/e you do, please try not to worry too much sweetie
....maybe it might help put your mind at rest if you got them checked out by a doctor? what do you think?