hm... it sounds like you have a mild form of cipa ...
You sweat right? like feel heat and cold etc. possibly you didn't develop as much sensory nerves as you 'should' have so that would make your 'problem' to be physical whereas 13'sbadkitty's is more mental and psychological.
I absolutely agree with Oz to go find a Dom who likes to use words or body control etc.
Although I also know that Dom's who are 'sadists' and enjoy causing pain, actually tend to play on different levels too. Like for example, on a numbered scale with 1 being lightest and 10 is bruising on the spot, my Dom likes to play at a 7-8 but 'can' and 'has' play at a 9-10 when a play partner wanted... but he would never want to play that hard with me. I know one Dom who likes to play so hard his subs look like they've been through a meat-grinder... I put him at 12
If being flogged etc. is what you want, you need someone who understands that your pain threshold is possibly a medical 'problem' and is willing to learn how hard to hit you without long term damage and explicit verbal cues.