Starline stables: I have not done any other IV/IM joint supplements. She does have a fly mask with ears, but I have a hard time thinking its the head shaking syndrome because it it no consistent enough- only when lunging, not when ridden and not when turned out (other than when she runs around like an idiot). I hope she does not continue this behavior out of habit. Knowing her personality I don't think she would. As far as training I will have to try and find a knowledgeable rider that can come rider her when I am unable to. I can't afford training at the moment and have already borrowed 8,000 for the dressage training and owe another 7,000- dang ponies are so expensive!
Existentialpony: I have also thought it could be a balance or vestibular problem and have considered looking into that, but I can't decide if I should put that at the top or bottom of my diagnostics to try list. I have not checked her eyes. She will do the head tilt straight, but not as much. She seems worried at the canter undersaddle and she used to seem worried at the canter on the lunge so it has made me wonder if she feels unbalanced. She had multiple neuro exams when we were in the process of diagnosing the EPSM and the last one was pretty normal but that doesn't mean she couldn't have a minor vestibular issue- thanks for the idea!
Deserthorsewoman: I was a little unclear with my phrasing- she gets 2 pounds of envision classic a day, which I was told by the grain rep that that was equal to 1 pound of fat a day. BUT reviewing Dr. Valentine's calculations she would need 4 pounds of Envision to get one pound of fat a day. I FEEL HORRIBLE that this was not caught earlier
I couldn't sleep last night because of it. Apparently the vet I had at the time didn't catch it either. There is no way I can afford to pay 30 dollars a week for a fat supplement so I will be adding the other half a pound of fat through oil. This mistake has now changed my mind about UPF treatment. We need to wait until she has been on the proper fat before jumping into surgery.
Left Hand Percherons: Thank you for the compliment- Harmony is SUCH a sweet and good worker and it has been so hard to see her personality fade because of her discomfort. See my comment to deserthorsewoman about diet issues. I have not done acupuncture, but I have someone that could do it. I will speak with that vet when she comes out next week.
Current plan: Fix the fat issue ASAP, talk with farrier (first week of April) about squaring her toes as much as possible, have her blood drawn next week to check electrolyte levels- if there is an issue I would like to try the Equiwinner electrolyte patches. Thank you everyone for the ideas. I don't know if I will be able to forgive myself for the fat miscalculation, but I will keep moving forward and doing everything I can to help this poor girl. I've had her since she was one and she is very important to me.