I've been down the OSA path with 3 of my precious greys, and they did let me know when it was time. Each stopped eating, refused treats, refused the ear rubs or tummy rubs that they usually mugged for, and could hardly stand to walk outside to potty. Clearly a quality of life decline that was pretty quick... 6 weeks from the very first limp with each of them. Unfortunately an aggressive form of OSA. Your baby will let you know. Keeping you, your DH and sweet Sukie in my prayers.