I have been suffering from PFS for a year. Last month, due to very stressful work, brain fog had gone up to the point that I considered suicide many times. Fortunately, I bumped into an article that introduced me to pranayama. Had been practicing it religiously and can say I am out of suicidal thoughts and feeling hell a lot of better. I could see results in 2-3 days. Also, I could get hard today after a long period of time. So, thought I would share my experience and see if it helps you guys too.
Lots of love.