I know it is uncomfortable for them, and her last three heat cycles she seems to be having alot of issues during it, seems like anal glands, and aggressive for just a few hours, and whimpers, i think her bum maybe burning or something? but she is ok afterwards. My concern is the surgery, the idea of someone drugging my kitty then cutting her open terrifies me, I know it is done ALL the time, but being that she is almost 4, the health risks of not being spayed would still exist, according to my vet, even if she did have it done now. (tumors, cancer) Aside from the annoyance and spraying, would there be a point to still have her spayed? has anyone done it to an adult cat?