I rode (not much, just a few double centuries, one at elevation, and some tough climbing training rides - one up to about 9000 feet) with multiple pulmonary emboli. I didn't know I had blood clots in my lungs . I thought I had a chest cold, or allergies, or asthma. Or something.
After the CT scan, I stopped riding. For quite a while.
Yikes yikes yikes!!!!!!!!!!!!!!!!
(glad yer better, glad yer here!)
I used to have an open mind but my brains kept falling out.