Somehow, I don't think all of this would happen in a cockpit.
I can assure you, Monsieur BP, that I've experienced tired and stressed and 40C in the cockpit on many occasions!
... and I wouldn't have wanted to add "a bit weak" and "very mild problems breathing" to my troubles at the time.
Gingernut takes a different view so follow his advice, which is usually good.
But for your own safety and for everyone else's, please give your full history at your medical.