Do they feel pain as we do?

I was outside and heard something falling and found this beetle lying on his back after coming off the wall. You can see the dent. When I came back and started to take pics, I noticed that his front, right hand side leg was missing a segment. I wonder if they feel the pain of the loss as we do??I think this is one of the Psammodes beetles (Toktokkies), but cannot find a name again.