For someone who has the occasional sniffles on a yearly basis, can you guarantee ear / sinus pain will not stop you from safely descending and landing a single seat aircraft (worst case in terms of incapacitation) or a passenger-laden multi (worst case in terms of you endangering other people)?
For someone who has asthma, can you guarantee that in a hugely stressful situation you will be able to function normally, giving the task 100% of your concentration?
1. Will it affect your performance? If yes, be true to yourself and anyone liable to be below / behind you.
2. If no, and your medical records don't reveal the truth, can you live the lie?