I looked at the symptoms of pssm only one he had was stiffness. Stiffness can also be lyme or anything else.
Might of been do to feet being long also he's getting feet done friday being shod all 4. Was a little stiff yesterday just on front-end. Probably his feet are a bit tender from riding the road 1/4 mile, to get to trails isnt helping.That will be changing as soon as snow banks get passable.
Seemed fine this morning at feeding time, he has today off we don't work horse's on Sunday... its their day of rest.
Holding off on any more testing and having vet out. Already spent a lot this last go with testing lyme and farm call.
Was a very tough winter on horse's, so will chalk it up to that.