I posted a little while ago about my cat having chylothorax and he is having surgery for it tomorrow. It's quite extensive and he will have his chest cavity cut open so the recovery will be extremely important. The vet said it's best that he stay in an enclosed pen so he can't jump, play, or do anything else to possibly hurt himself for an entire 2 months while the chest cavity heals. I would feel so bad as he absolutely hates being in a carrier, I ordered a pen off Amazon that's more spacious than a carrier but still fairly small, and I'm worried about stressing him out after surgery if he feels trapped and can't get out. Has anyone else had to do with their cat post surgery?