Well, I have a problem here.
My mare is sixteen years old, she does flatwork schooling, a tiny bit of jumping and a fair bit of hacking. I have had her for four years.
In the time I have had her she has usually been a bit of a fidget to mount, but not too bad. She often likes to walk off as soon as i'm in the saddle, but it's been getting much better. Other than that i've had no problems.
So a couple of months back, I messed up. I was putting her saddle on, and hadn't noticed a little bit of mud stuck on her girth. It was enough to dig in and irritate her when I tried to saddle her, and she pulled back and got loose. I checked her and the girth, found the lump, took it out and she saddled fine.
I tie her to twine. I know a lot of people here don't agree with tying to twine, but I have always been taught it's the safest way and everyone I know ties to twine. I do because I don't really have anywhere that would be safe to tie my horses without it.
Anyway, she learnt that she could break it, and a monster was unleashed. I worked with her on this, generally by making her work when she pulled back, and rewarding her when she stood well. After a week or two she was fine again and I forgot the whole thing.
Then this weekend I had both horses tied up in the yard. A friend and I were tacking them up for a hack. We'd been grooming them for about ten minutes and I went over to her to check out a rub mark on Solo that she wanted me to look at. Suddenly for no reason, Phoebe has pulled back she broke two bits of twine that she was tied to, but she was also tied to a braided part which didn't break. She then stopped, rested a foot, sighed, looked around a bit, looked for something to eat, then she went crazy and started pulling back again. I ran to untie her because I didn't want her to go flying if the twine broke. I then circled her and made her stand until she was standing quietly. After a minute or two she's pulling back and doing mini rears while i'm holding her. I responded with a pretty good slap on the shoulder followed by circling. Until she stood again. She stood perfectly to be tacked up and was really calm. Then when I tried to mount her she ran back and mini reared again, twice, until I made her stand and mounted properly. We hacked out. She behaved perfectly.
She's perfectly calm in between times, and actually pretty calm during. I don't know why she's suddenly gone a bit psycho. Please don't say back pain or poorly fitted saddle. I have had a trainer, two vets and a qualified saddler all say her back is fine and her saddle fits well. She is respectful in all other ways. I can move her feet to wherever I like, she does not barge me, she lunges, freeschools, moves off to pressure etc etc.
Clearly what I tried before hasn't worked, even though she has been fine for a couple of months now. I don't know what started her up again, but what do you all-knowing, wonderful people suggest I do to sort this out completely? All suggestions respectfully taken!
Sorry for the essay, thanks for reading this far!