Thanks guys.
The key thing that made me think is people's facial expression when I talk: it almost seems like it's painful talking to me, and sometimes there is a look of disgust on their face. They will always end the conversation very quickly. I'm realising it's impossible to hold a conversation of any longer than a few minutes with anybody if it's face to face. It's easier when talking on the phone, but it can still be a bit strained.
I love the new job, and the trainers have said I've picked up the day-to-day job well ahead of schedule, and seem to perform well. It's just that I'm away from home all the time in hotels, and you're expected to socialise with the guys almost every night, which I'm finding impossible. When I try, it's desperately unfulfilling and disappointing. I think people can see there is something 'odd' about me, so while I'm good at the job, it feels as though my behaviour is undermining me.
I sometimes wish I'd known this before changing careers: my family and previous work colleagues have always said that I was just very shy, had bad body language, etc,. and I thought one day it would just go away.
gr999