Where Do I go From Here?

For over a year now I have been battling stomach issues. The doctors can't find a cause so they labeled it IBS. It's not supposed to be a big deal, but there are days I am just so weak I can hardly walk. I'm still hoping for a miracle. It isn't life threatening,but I would love to have enough energy to do what needs to be done. Last month I was truly blessed and I was able to attend 2 church camps with 2 different age groups of kids. Most of the time I felt better than I had in the past year. It was awesome. It not only touched the lives of the children, but mine as well.
 One day as I was praying,I told God I would love to preach. Now where that came from I don't know because I was brought up that women don't preach.
Maybe it's not so much a preacher,but a teacher. I don't know where this is headed yet. So I kinda put it on a back burner and chided myself for being so silly. Last night a young lady about the age of 11 came up to me and asked when I was going to start preaching. It was a young people's preaching night and a small crowd in attendance to hear about 4 young people from the age of 12 to the age of about 27. There were approximately 9 or 10 adults in attendance with only 1 being certified to preach. My first response was that I was too old. Of course 50 isn't really that old. So I don't know really where my life is headed,but I stand amazed that she would ask me such a question. Whatever it is God wants me to do, I need direction. I know he will give me strength when the time comes.