Connie, all of us that have posted here to your question have said basicly the same thing, and i do hope you take the advice given and for safety sake take your grandson to a medical specalist in that field. A childs health you don't wait 2 weeks, and ask strangers about! And make sure you have as much of his history as you can if you are the care giver.
Good luck and best wishs for you and your family,
Tanya