Little meltdowns

Today was the first time this year that I have been pulled aside by the teachers for them to talk to me.  It happened several times last year so I always get nervous that Adam has punched or tried to strangle someone. Apparently Adam had 3 mini meltdowns at school today. He gets upset about something (I think one of them today was over a toy that someone wasn't sharing...I don't remember the rest) and just throws himself on the ground crying and then it's over pretty quickly.  They asked if he's been doing this at home and the best way to calm him down.  He has been and we tell him to take deep breathes and talk.  His problem is that he doesn't like to talk about stuff.  I told him in his Sports class to ask someone to move instead of crying that someone is standing where he wants to be.  Guess what?  The following week he did, and everyone was happy! But I guess he forgets that it applies anywhere/anytime...to just ask! 

He threw a fit as we were leaving school because as I was looking through his book bag, I found a little note/picture to him from a girl named Ella.  (It was a heart with an arrow through it.  I think she likes him.)  He said he didn't want it and threw himself on the floor crying. What the...?  The only notes he wants are invitations to parties,  letters from Gramma & Pop-pop, and from Santa.  I tried to explain how nice it is to get letters from anyone, especially friends and he said he doesn't want her as a friend.  His friends are the 3 boys in class and the girls Abby and Aizza.  He said that at the end of the school day as the kids get picked up, he says "Goodbye (insert each of the 5 friends names)!  I love you!"  but not to Ella or Farrah (or the other girls names he can never remember).  Dave suggested saying something like "See you next time!" to everyone but I don't think Adam was into it. 

Anyway...I'm trying to pay attention to what he eats (or doesn't) to see if there may be food dye issues or hypoglycemic type issues that lead to his meltdowns or violent streaks...or if it's just part of being a 4 year old boy.