Overcoming worry

Well, I have had some things on my mind lately and by things I mean Ty's health and memories.. I don't know if it is the season (allergies, sinus) or the time of year (a year from when Ty's got sick), but I have been thinking more and more about Ty's tumor. About a month ago, he got sick and said his head hurt.. he ended up having a fever and an ear infection, cold.. etc. That day was too close for comfort and unfortunately I have worried every since. Every time that little guy grabs his head I flip out.. he was eating a popsicle and had brain freeze, I freaked.. he threw a fit yesterday and said that his eye hurt.. I think in a way, he now understands that his health can play a role in getting what he wants and maybe exaggerates just a little.. When I say complaints of head hurting, I mean 3 separate instances in 1 month, not every day, 2 times a day. He had an MRI a month ago, so this should give me comfort right??I guess I am just being haunted by memories right now. All too familiar days of head grabbing and screaming.  I feel like I should be over it, but I definitely am not. I know it is going to take time, I don't know how much time, but definitely not yet. My sister gave me some scriptures to pray when I start to worry, so I am doing this. A dear friend told me that maybe God gave us children that have illnesses to draw us closer to him. I do believe this and have always felt this. I know he knows I can handle it and I know he knows just how I will handle it, but I just haven't figured it out yet. I do feel like it is within reach though, so that is progress!!