My horse Danny who is a 16hh, 8yo, Homebred TB (never saw racetraing or race track or anything along those lines) was so quiet and perfect when i brought him roughly 3 or so months ago. Nothing phased him and when i got him i had had a year off riding so my riding was shocking. He took everything like a pro and i was quite confident (i have a tendency to be quite nervous and cautious due to an anxiety disorder) then one day out of the blue he was jog jogging around and wouldn’t stop (feed/paddock/saddle nothing had changed at all) i didnt take much notice just thought he was having a bad day. Then he started rushing over poles and jumps, then he starting bolting, then he started bolting and pig rooting and today when i was lunging him was rearing so high he nearly flipped. He acts like this with or without saddle/bridle so its not that, his feed has not changed since we got him. His feed is -chaff, hygain balance, hygain showtorque (although very little), magnesium, digestive supplment called digestrite, tumeric,flaxseed,salt and garlic. Im very worried now that he might start rearing like he did today when im on him and if i was im sure we would flip (hes going that high lol) and obvioubly that is seriously dangerous. We are in conatct with my coaches e.t.c but this is a very puzzling mystery as there doesnt seem to be one constant between all his bad behaviour and its quite eratic. One day ill be quite nervous and he will be an angel and other days ill be nervous and he will be bad (understandably) and then ill be confident and he will be a right devil and visa versa. I dont think its physical but we are getting that checked out. Now i can only walk and trot in an arena and before all this i was cantering and doing XC. I will not sell him as i love him to much. If anyone has any ideas no matter how strange i would greatly appreciate the input.
p.s it is not directly linked to me and my nervousness although i am aware it doesnt help the situation so pls don’t say that its because im nervous its a lot more complicated than that. He acts the same for my mum and shes very confident.