
Thanks for your replies. Pups nails are fine no sharp edges or anything on them. Looking a lot better today and she is a bit more comfortable not looking for somewhere cool to lie down other than she would normally.
Spoke to the vet who says it could be the heat or something she has come into contact with, which set me thinking and the only thing that came back to me was she lay down on the kitchen floor after I had mopped it with bleach and water. And I know bleach can irritate the skin.
Lesson learned, make sure floors are completely dry before letting the dogs in.