my son is 17 1/2 months and is having a sweat test done. read some of the symptoms online and he has a lot of them. should i worry or not?? i'm really scared he is being seein in childrens hospital boston. which the best hospital for kids in the boston area. so i am confident that they will test him for what ever they feel they need to but i want to know if there is anything specific i should ask for please help me..<img src="i/expressions/face-icon-small-sad.gif" border="0">