I've had it since I started living full-time, pretty bad. Unless I'm in a relationship, or they're family, I don't want to be touched. There's a girl at work, who doesn't know I'm trans, and is always coming up behind me and touching me. I somewhat freaked out once, and told her straight up to QUIT, and she got offended like "Damn, what's your problem". It's mainly on my back, and chest of course.
Even when I am in a close relationship with someone who knows, it gets uncomfortable if I'm not binding, and they're laying their head on my chest, or putting their hand on my chest. My ex knew the only safe spot was between the moobs, and she couldn't sleep without her hand there. I think it's pretty normal for guys pre-op to have it.