Son just turned 2. He loves his food but whenever he is teething (his molars are coming through) he doesn't eat. He's been teething for the past week and I give him nurofen and Calpol. It helps him at night, but during the day he just hasn't been eating. He literally eats a few tiny bites at breakfast, ignores his lunch, eats a few soft snacks and doesn't really want his dinner (just plays with it). He seems to have eaten the most tiny amount of food this week and just keeps saying 'my teeth, ow' and crying. I'm worried he's hardly eaten anything the past week and just wants breast milk. Thankfully he's drinking a lot. Is this normal/OK?