Something not right

Very strange thing's happening with Chiclet. Yesterday i get this call from one of the boarders at the barn your horse is out and I can't get him. Crap!...took 20 minutes to get the to barn when I got there he was in his stall. The boarder got him finally. She said he was crazy and I'm thinking that's not my horse something must be wrong. She wasn't sure what happened but there was two rails down and all the horses where running. I put him back out he squealed when I let him go ......hhmm.....So I picked the paddock and watched him for about a hour and a half everything seemed ok. I took him out and put him in the ring he was nuts running the fence line. I put him online and played with him, Something was not right... He couldn't focus on anything it took a very long time to get him thinking. After I grazed him for a long time. I don't know what happened but something really got to him. Later that evening the boarder called me to tell me she doesn't want my horse turned out with hers anymore (she is very right brained). So I said that was fine and also told her that something wasn't right with my horse......She still made the commit your horse is crazy and I don't want my horse with him. Wow people are hard but it's ok I now know where I stand with her.