I'm 17 so I know how you feel about the school. I have 2 years more till the faculty but I'm worried how would it be.
We usually move to the city where we are going to faculty, mine is 2 hours away from where I live now. I don't know how it's like in the UK.
I can't imagine how it's like to travel 2 and a half hours two times a day, it's a horror for us emets!
I think it would be good for you to go to doctor..I'm planning to do that too when I'll be in faculty. I hope I will find someone who will understand me and my fear, although I'm sceptic.