Hi.  I am new to the forum.  Toby is 10 months old and when I got home from work, the bottom of his chin was a little swollen.  After a couple of hours, the swelling has gotten worse under his chin and he looks like a billy goat.  He is acting perfectly normal - eating, playing, biting the girls.   I believe he was bitten by some sort of insect.  Has anyone else experienced an insect bite and the symptoms for same.  Thanks