You've got twenty days until you enter the Neuter Zone?
You may have something to bitch about there. Just stay perfectly still during the procedure... don't move a muscle... or twitch - not even a nervous facial tick - else one of your balls could fall out, the doctor try to capture it in wild juggling, it hit the floor, the assistant kick it while trying to pick it up sending it airborne into the wall baseboard like an errant, stray meatball at Luigi's on Friday night; otherwise, you have nothing to worry about.