Daleandrewswire,
I fully agree with Capot - don't stop what you want to do! If I get out of breath after running up the a/c steps when we have an AOG, then of course you can be an engineer.
Just a quick internet scan reminded me that Paula Radcliffe was able to break the womens world record for the marathon, and Mark Spitz can win 9 gold medals at the 1972 olympics as asthmatic's, don't let anything hold you back.
Good Luck, and look forward to you joining the fold.
Regards,
N1 Vibes