My lab mix, almost 12 years old was diagnosed as diabetic a little over a year ago. She has done really well with the insulin shots but in the past few weeks, she seemed to have a lot of pain in one of her back legs, she also had a droopy eye, but has cataracts and is almost completely blind. The vet couldn't find anything broken, but gave her a pain pill. She seemed to do a little better, but the past few days has slipped again. She whimpers in pain when she has to pull herself up to stand. It's almost as the back legs don't want to work, or the pain is to severe that she doesn't want to get up. She will get up to go outside, she will eat food (usually laying down at the time), and still wags her tail. Is there anything I can do, or is it time to think about putting her down. I am waiting a call from my vet, but haven't heard back yet.