El Supremo,
If you really believe you do not have asthma, request a lung function test. The Army do it as standard for anyone who's ever been prescribed and inhaler, regardless of whether it was asthma or not or anyone who has ever had asthma diagnosed. The RAF should do it, they did it for a case a few years back that I am aware of and that person was cleared of childhood asthma after passing the LFT.