Last year we bought a lovely horse for my DD (age 22, riding at PC open level, B test, capeable rider). He was/is lovely, a registered ID x TB, age 8, with low mileage, we bought him through a friend who had bought him for her son who had lost interest and he was too good as only a 'mum's hack'.
DD has spent the winter having lessons, hacking, a little indoor jumping but this spring he has suddenly changed personality - really getting bolshy in the yard, started rearing in the school and taking a hold in canter. All very out of character.
I've had the equine physio give him a check over, he's had his teeth rasped in the last 2 weeks, he's fed on Calm and Condition and hay so a real low energy diet.
Does anyone have any further suggestions? I'm at my wit's end - having horses is meant to be pleasureable! Incidentally he's fine to hack and totally non spooky, quite chilled, in fact.
Thanks for reading.