Umm....are you aerious...
Ok.. Im answering as I just looked at helios from the point of view of are they looking for pilots and I saw they are looking for crew so you caught my eye. If you have any doubt about your health don't even think about flying as a career! Its hard work charter like helios and youll be on your feet night and day. Youd be mad to take any risks if you arent well, the pay certainly won't be worth it! Helios have had problems, so you cab bet your life they will be as if not more scrupulous now with their medical and proficiency checks as any other airline. You won't manage to hide anything, and if you do and it causes you problems with your health, you'll get no compensation and youll also get sacked. Get the picture??? I notice as will that you're in the uk, I assume you know that helios is based in Larnaca?