Spirit of Fear?

I have a friend who often reminds me that the worry over your children never stops. Surely though, you do get to a place where you don't feel like your heart will stop if anything goes wrong, right?
Jack has had a low grade temperature all weekend. So, of course, we are worried about his shunt. He is a little congested, his stools (which are still the usual once daily) are a little looser than his normal solid stuff, and he is not as active and happy as he usually is. Are those symptoms vague enough for you? How bad is it that I find myself wishing that he was having some obvious diarrhea? I bounce back and forth from being sure that this is just a virus and his energy level and appetite are picking up to worrying because even though his other symptoms appear to be getting better, his steady low grade temperature is edging upward. Say some prayers for Jack that he'll feel better and that his parents and doctors will have wisdom in treating him.