No need to worry. When I arrived in Heathrow London airport last Oct. 18, I was just asked by the UK Border (immigration officer) to go first to the health control room with a form since I will be staying in UK for more than 6 months. I went there and the lady just took my address and stamped the form and instructed me to go back to the immigration officer and that's it. I was allowed to proceed to the flight connection departure section to wait for my connecting flight to aberdeen. I was told that I will receive a letter from them in 2 weeks time that will request me to go to a clinic to undergo x-ray. You will also be told the same thing.
Better start packing and get here while it's still not too cold. Congrats again!
