I think you should learn the language. You do not have Raynauds, if you do, then you can't join the Armed Forces. They don't say anything about 'except mild forms' or 'except forms in remission' or 'unless you only had it once when you were tiny and can't even remember it' or the asthma favourite 'unless you didn't even need to take any medication for it'. As I understand it, it's a genetic condition, you either have the genes for it, or you don't, in which case, you either have it or you don't.
Symptoms are not the point, what the RAF is concerned about is a predisposition to a medical condition at any point between the age of 17 and 55 whether directly or indirectly associated or possibly aggravated by the demand of military service (and thus sue-able).
You only chance is if you can learn to stop self-diagnosing and saying you have any form of Raynauds, and that they don't ask you about any family history of such problems. I can't remember if they do or not. If you can't live with that on your conscience, choose another career.
I'm sorry if that sounds harsh, but many of us have had to sort out similar conundrums, usually vis a vis hay fever, and similar questions get asked on here nearly weekly. It's a clear choice - stfu or go for another career.