Thanks everyone in the previous post for the thoughts and prayers.
We got to the ER and they saw him very quickly. He was acting very alert and was in a good mood, so the pedi there wasn't too concerned and checked his head and ears out. When she got to his back and we lifted his shirt his spine was flaming red and his neck also and he didn't like us touching it. They did an xray though and everything looked fine. She says his body will just probably be really sore and he will have a headache (I would too if I fell 4 feet onto hardwood floors) We are supposed to give him Tylenol and motrin for body aches and pain and of course keep an eye on him, stay low key the next couple days.
I can't believe what a monkey he is! We have the bed on the lowest setting, almost to the floor! I know he likes to climb though, because he will climb over our gates and onto the couch, etc. We are putting a blanket on the floor just in case!
Re: Update to DS going to ER
I missed the OP, but I'm glad he's ok!
So he climbed out of the crib? We have hardwood floors too. Now I'm worried.