Ok, I went to feed for a freind, and felt up all her horses!
I really think some of Rainbows problem is from needing some muscle mass. Her spine felt very similar to the other horses, but where their spines dipped a bit, the muscle was bigger and evened things out.
I know this does not make sense!
If you could feel her, she is like a person with a flat butt! She needs more booty.
I dont know, I will talk to my not very enthusiastic vet and do what Marty said by looking up alternitive docs.
She was doing great holding her weight, untill the last couple of weeks, (maybe 2) and I had already been increasing her grain, but noone but me thought she needed it. I am going to trust myself a bit more and increase again. SO far I have been mostly right about them and what is going on with them.
Everyone has been well wormed, and hooves done, and shots. Rainbow just needs the 5 day, but the feed store was closed this evening. So tomorow or I will order on line. I think she needs that too, as I said I dont think previous owner wormed with anything other than ivermectin.
And just to know, I never bred her, she came bred and we have her 2.5 year old. I really am not into breeding. We just liked her, and didnt mind taking her out of the gene pool.
Thanks for all the replys, this is such a tricky problem.
We need a photo gallery of all things weird,