No, I am pretty fit, routinely ride my mountain bike & road bike, rock climb, backpack, etc. However, I'm absolutely petrified of getting the disease, as I have calculated it is about 10-20x more dangerous than the flu for my age group. And when I last had the flu about 20 years ago, I felt like I was going to die (it's the only time I've sought medical help for an illness), though I was probably not even close to dying .
Not only is it more dangerous, I think it's far from clear for the ~10-20% of people who end up with a serious case whether the recovery of lung function is complete and total. I would like my lungs to be 100%, thank you very much.
There's a significant number of people who become seriously ill, even without co-morbidities. Medical professionals don't understand exactly why, as far as I know (it may be something genetic, but all speculative). Of course, people with these other conditions are at extremely high risk, but I'm at significant risk as well.
The other factor is that my wife is not as lucky as I am, and it's fairly likely that if I get the disease, she will get it as well, and it'll likely kill her.