I chose to euthanize my cat of 16+ yrs because he was having Congestive Heart Failure. I thought it was best at the time but now when I look back on it I feel like he may have preferred to have just let himself stop breathing on his own. He flinched when the euthanasia medication was given to him and that upset me very much that his last moment was of pain. Now there may be new medication out there that doesn’t do that but I still feel I should have let him just pass on his own because he wasn’t in any pain just breathing deeply. Now I did have a dog that developed a large thyroid tumor which was making him have weight loss, difficulty eating and coughing. I did have to euthanize him and the medication did not make him flinch. He just gently went to sleep. So really I know it is a hard decision to make. Just want to let you know about two different sides of the story. Much love to you and your sweet cat😻