To be fair a good few of my co-workers are van/truck drivers who sit on their arse all day and smoke too much

but nah not a particularly unhealthy environment overall but I'm not just talking about work. I live in a rural area and most of the people I know around here tend to be outdoor/active types.
Besides the science shows unlike your normal cold/flu viruses this one is adapted to being able to infect cells found all over the body including several major organs - personally I had it infect my digestive system - if it wasn't for that the overall impact would have been fairly low - I was 75% over the classic symptoms by day 3 after they emerged though I suspect would have still suffered mild to moderately with fatigue/weakness for at least a few weeks after. I've never had a cold leave beau lines on my nails before or lose my sense of smell such that it took over 8 weeks to return to something like normal.