Not at all!!! like the exact opposite. I'll usually feel indestructible and also any lingering cough or sinus issues usually resolves overnight. Not sure if it's relevant but have you checked a blood panel? Elevated enzymes can feel like a slight fever or bad cold. Although I'd think you'd get that worse as it went on not at the very beginning.
I mean could it be coincidence? Do you always start near the same season? How many times has this happened? Is it always the same type of gear/PH/peptide?