Glad to hear that there is no need for surgery. Hope he can relax and realize that you are only trying to help. It is so hard when they are in pain and you cannot make them understand that you only want them to feel better!
I had to laugh at your cat's name.... my first cat that was just mine (not a family pet) was a cat I received in Jan 1990...and he was promptly named "Sebastian".... looks like we like the same movie!......................P