feeling blue, boy gone for week

Roy, the oldest, is off to church camp.  He didn't really want to go but his mom forced him.  I told him to make it through tonight and try tomorrow, if he can't take it, I will go pick him up.  We haven't spent more than a day or two apart since he got sick three months ago, and we ahven't went ten hours with out talking on the phone, I last talked to him nine hours and three minutes ago.  I am so sad.  I hurt, I am scared for him.  I pray that God will help him through this.  I just wanted to cry out, I have no one to comfort me when he is not around.  I just have to try and make it through and hope he calls from a pay phone.