Maggi, you can adjust her feed now if you'd like, but I'd have her scoped anyway, just in case.
A complete feed should have these ingredients: beet pulp, oats, rice bran, flaxseed, barley, vegetable or soybean oil, and alfalfa meal. They'll have other ingredients too, but these are the main ones you want to look for.
Since you're in Ireland, I doubt you can get Triple Crown. I'm sure you'll have something comparable, though.