I worked in an AFCO (RAF Careers) for the past 3 years and the amount of 'medical conditions' are endless. If you are serious about a career in the RAF, go along to your local AFCO (Their phone number will be in the book) and submit a medical supplement. The staff will then send this to the Medical Board at RAF Cranwell and they will make the decision to either allow you to continue your application or not, you may be required to attend a specialist review board. The initial process takes a couple of weeks. If you want any more information, send me a PM and I'll be glad to help you out.
Best of luck.