Sometimes our situation can seem hopeless. It's important to remember that not only do recoveries happen, they're relatively common.
Here is a google docs link which lists the recoveries I have come across:
https://docs.google.com/document/d/1Og92j4ICw94E0SEIdXGDIGoEtlQEKNvFZjAAmwwXrzc/edit?usp=sharing
I'm pretty sure I've not come across more than 20 cases of PDD, so 5 recoveries is a 25% full recovery rate - and that's just the guys who bothered to come back and share their success. It's probably more.
Compare that to the recovery rate of Post SSRI syndrome and Post Finasteride Syndrome - it seems like their recovery rates are less than 1%.
If you come across other recoveries, let me know and I'll add them to the list.