Join Date: Apr 2012
Location: Ontario, Canada
Honestly his high head looks to be from annoyance, not fear or pain... One thing you could try doing is just every time you get on him let him walk on a loose rein for 5mins before you get into any activities and also when you finish for the day. Do it without directing him, let him choose where you guys go so long as he keeps at a walk without speeding up or stopping. He will learn to expect those 5mins and will end up liking it and hopefully it'll help him to relax.
Now, this is not a proven thing, but some horses do learn to just LOVE it, so maybe it'll help him
"It is the difficult horses that have the most to teach you" - Double Dan Horsemanship