Mike 2001,
There is only one thing to do.
Don't tell them, if it was only suspected and you feel 100% free well why ruin your career.
Talking from experience i was on the ground with the aac for 7 years, i was born with asthma and at the age of 18 i joined the army air corp.
I left after 7 years still with asthma and i passed every medical in the army including pilot selection.
I know pilots in the the army with slight asthma or suffered with asthma before taking their pilot selection and they are fine.
This takes a bit of common sense , if you have got bad asthma or you think you may be a danger to other people well don't do it.
But a suspected case 5 years ago, if you really want to be a pilot you will go for it.