therapy and medicine

I'm spending some cash and time on my son's behavior issues this week. Tonight was a session with my favorite family therapist, and tomorrow's a doctor's appointment. I'm going to ask her to test him for allergies and sensitivities, so we can rule those things out. I don't think there's anything wrong with my boy, per se, but I do want to help him get a handle on his emotions. He's just so volatile. Wonder where he gets that?