Thank you for your replies :)
My vet is coming out tomorrow so I will discuss my problems with her.
The FB page was really helpful so thank you for pointing me in that direction.
In the meantime I have swapped her feed, hopefully she will like it as she has been off her feed recently, and...
Im a tad confused by all of the information regarding ulcers and treatment.
What signs have you found that indicated your horse might have them?
The more that I read about ulcers, the more I think my mare could be suffering from them. Having been on 4 different yards over the last year...