Yesterday I was about to take some photos at the Fire Dept. where I work, and I thought my camera was securely attached to my tripod, but as I tilted the tripod to extend the legs, my camera fell off. It fell from about waist high and landed on concrete. As far as I could tell, the edge of the lens hit first. I did still have the lens cover on and I don't see any damage. After I looked the camera over, took a few deep breaths, and turned it on; it seems that everything is fine.
I was wondering if there is any reason for me to send it in to have it checked out? Like I said it seems to be fine. I took about 15 photos after the incident, and they seem to be as good as the ones before. It's just that I've only had this camera about a month and a half and this is my first DSLR. If there could be something wrong that I can't see, I'd rather go ahead and get it fixed.
Any suggestions? I'm I just paranoid?
Oh, it's a 60D with the EF-S 18-135



