It's a sign of being tired Kelly. Probably the discomfort is wearing her out. Our vet suggested a one-off administration of half a small aspirin for pain relief whilst antibiotics took effect. The result was nothing short of miraculous -she was fine and active the next day. Something we have used a few times now with the same result. It seems to remove the pain and give them sufficient relief to start life again with renewed vigour. So perhaps worth a try?