I'm not a 'huggy' person either. I never have been according to my mum. I've been desensitized by a couple of very 'huggy' friends but I don't think I'm ever going to be overly physically affectionate.
I do hate being touched by strangers. I try to avoid it as much as possible. I used to work in a shop and being touched shouldn't have been that much of a problem, but some people seemed determined to grope my hand. When I would go to give people their change, I would hold it in my fingers waiting for them to put out their hand so I could place it on their palm. Some people took my hovering hand as a signal to wrench their change out of my fingers slithering their slimey fingers all over my hand. Ugh, seriously gross and annoying. Sometimes I visibly shuddered.