I'm so sorry to hear this. Animals can hide their pain very well so it's sometimes hard to tell when it's time to let them go. My baby boy Starr was trying to show me for several months that he wasn't feeling well but I was in denial. He was still having some good days so I thought he was okay. He then started having more bad days than good so I knew it was time to say goodbye. This also just happened recently and it still hurts but I know that I made the right decision and now he's pain free and finally at peace. My thoughts and prayers go out to you during this difficult time. Please take care. (((HUGS)))