Wishto-
Know what you are going thru. I am waiting in the Flight Screening Pool at moment ie waiting for 2 wk course at Tamworth.
I had a knee arthroscopy done last year and this raised some eyebrows. Dr at recruiting medical said it was all good but AVMED would get final say. About 6wks later AVMED **** canned me and said I was too much off a risk of not being able to carry out all strenuous activities associated with being in armed services. (Despite the fact that I would probably be fitter than 95% of them)
Anyway to cut along story short, I appealed the decision, got two knee specialist reports, a letter from my 'boot camp' instructor from Fitness First, another letter from my squash partner together with my covering letter.....and wow had a win and my application was under consideration again.
So if you really want in, keep fighting them all the way.
Cheers and good luck with it!!