Hi ds2 is 5 in June. 2 weeks ago he was off school for 2 days complaining of feeling sick, but he was never actually sick. Last night and again this afternoon he has been crying because his cheek hurts. I have looked in his mouth but can't see anything obviously wrong. He woke up this morning ok and we went out for the day with no problems, however he has starting crying again saying it hurts and occasionally complaining about his tummy. I have given him calpol and he seems better. Do you think he could be teething?