Originally Posted by lacyloo
Soak the hoof and clean the bottom really well, see if there is a bruise mark underneath. My gelding went 3 legged lame because of one (he's a wimp).
OP says no evidence of hoof issue. Not even sure which area of the horse's body is "off".
Not moving to get a treat!!! That is bad. With colic, horse will be uninterested in treats, usually, but there will be other things, like elevated heartrate and breathing rate, white gums and lack of gut sounds. Horse usually will move with anxiety, but not always.
This kind of reminds me of some post I read here about a horse like this, wouldn't move at all, turned out it had a dislocated hip. Do you see any obvious misalignmetns of the spine, like bumps or twists?
Did you talk with Bob?