DVT/Pulmonary embolism for me, times two!
The first time had me in hospital for 9 days, then bed rest for another 3-4 weeks. After that, I was starting to walk again.
It took me weeks to be able to walk more than a few hundred metres, and that was slowly on the flat! I built up the distance and speed until I felt able to face the steep local hill. I was gradually able to walk further and further up it. Once I could get to the top, I started walking faster. Eventually, I could walk up there really briskly. That was about 8 months after my stay in hospital.
I then felt able to cycle (slowly!) on flattish roads. A month or so of that and I started riding up hills again.
I had a relapse a few months later after being taken off my meds, so I am now back on them for life.
My second recovery was much quicker because I was treated before the illness did as much damage as the first time. I was able to carry on cycling at a very easy pace until my breathing improved.
That was back in 2012/13. I would say that my limits are now about 25% down on what they would otherwise have been. That leaves plenty for fairly long strenuous rides as long as I am sensible and don't push myself too hard.
Short version (!):
- Good luck with your recovery!
- Listen to your doctors
- Listen to your body
- Build up slowly
- Stretch your limits a little, but don't try to smash them!