Stiffness in the Hind Legs

Okay, so I'm getting a new pony, and I've found the absolute perfect one for me. I know there's no such thing as the perfect horse, but she suits me down to the ground.
My only concern is, she's 14, and I've noticed when she walks, she has a little bit of stiffness and a little clicking in her hind legs. However, it doesn't seem to affect her when ridden, she's very forward, and loves to trot and canter.
What could the stiffness be, is it anything to worry about? I know she gets jumped a lot (which she enjoys by the looks of things). I'm worried that she has something like ring bone or arthritis. Are any of these things treatable?
It's really worrying me because she's my ideal horse, and I'm worried that if I get her I won't be able to ride her for long.
Any idea what it could be, and if it's treatable? (She doesn't appear in any pain with it, just a bit stiff and clicky)

Something I do know also, which may be a factor, is a while ago she was ridden in a bad fitting saddle and it made her dip her back due to the pain. She's got a correct fitting one and her back's slowly getting better, could her dipped back cause the stiffness?

Hello!

I'm not too sure about the back having alot to do with your problem, but it may be it's just not something I would worry about too much!

I have ridden a horse that was a 3rd level Dressage horse and he was only 9 and his back legs cracked all the time. I don't think there is anything wrong if there seems to be no pain!

If you are really worried I would recommed putting the horse on Joint supplements and that should help alot for her overall help. She is 14 so it's probley good to start her on it.

Anyway I don't think there is a problem with the horse, nothing that some cheap supplements couldn't fix! Good luck and feel free to message me if you need any other help or if the problem doesn't go away(:

Moved from different subforum. Bumping up for OP.

Thanks, it does sound mild, but I think I'll start her on supplements once I get her I think. Thanks for your help and advice :-D

Be vary wary! My horse is exactly the same. He isn't in any given pain from the clicking and stiffness, but what happens is the joint capsule has dried out and he needs to be on a joint supplement for the rest of his life and if left untreated it will develope into serious arthritis. He is 10 and we think we caught it early. But it will eventually devolope into arthritis.

The vet found nothing wrong, but the chiropractor was alarmed.

Yes, I was a little worried, but I think (being as it seems relatively mild, currently) if I start her on a good supplement as soon as I get her, I think she'll be all right. Also, I was told if a horse holds it's head really high, it can cause the stiffness (I don't know why) but she definitely does that, which is slowly being corrected. Either way, I think she's too perfect in every other way to let this put me off. I'll just be careful with her and I don't think I'm going to jump her often.