I feel guilty for asking for help when I mainly just lurk on here but I really dont know what to do. I've had my new horse on loan with viewv to buy for 4 weeks and he's lovely, perfect for everything I want and I love him to bits already. I haven't ridden him since he's been with me because I wanted to get a saddle fitted and his back checked, although I did have him on loan at his owners for a month and rode him lots there. I had the back lady out today to check him and he was very tense and sore but worst of all was that she suspects that he's got arthritis in his hock. She said I should speak to my vet about putting him on bute for a week and then he'll have to have a joint supplement along with devils claw or nobute for life. She said that it could be managable but it could get steadily worse. I dont know what to do. I know I should just cut my losses and send him back to his owner but I love him to pieces and would worry about his owner being able to look after him because the reason why I've got him on loan is because she cant afford to keep him. Dont know what to do!!