I was in tears while reading your post-8 years ago my beloved dog of almost 16 years apparently had a severe stroke & was unable to walk as well-in my case I let my ex-husband talk me into immediately taking him to be put down-it was hands down the hardest thing I had ever done & my dog was so scared. I felt guilt about this for so long-that maybe it was a hasty decision & he might have gotten better. A long time passed before I could cut myself some slack & realize I did what undoubtedly had to be done-it may take you some time still to come to terms with it. My heart goes out to you & I truly believe you did what was best for your kitty & I hope you can focus on the many happy memories that you have of the two of you together.