Yeah I don't know what to say. with horses there can be so many problems, sometimes it takes a person who has delt with horses for all their life to be able to figure out the problem. I know what you mean about being scared on a horse, just in august I got on a horse and it wouldn't listen, it just kept galloping faster and faster and then we found out the saddle wasn't on tight enough and I fell off at like 40 kms per hours, I fractured a rib. It was scary. And as of today that horse still doesn't listen good to its owners. Hope you find the problem soon!