Thank you for telling your story. Interestingly, something very similar happened to me. I took Propecia and I didn't feel right for many years after it. I truly believe it screwed up some of my development.
I started losing hair at a young age. I knew MPB was coming. When Propecia came out, I got it.
I had read the propaganda book "The Bald Truth" in the year 2000. I followed the clinical trial data for "Propecia" at the time. It sounded like a miracle, like the perfect drug. I was young and naive, so I trusted "the science". And the science turned out to be 100% bullshit. If anyone wants to see what a fraudulent clinical trial looks like, go and look at the "Propecia" data.
I took Propecia when it came out, and I felt exactly as you just described. I didn't take it very long but I felt screwed up from it for years. Looking back, it feels like a miracle that I was able to recover from it.
In regards to the hair: I had to shave it for my new job at the time. I was pleasantly surprised. I liked it and I stuck with it, so the hair issue ended for me a long time ago and I'm thankful for that.
Many years later, one day, for the hell of it, just out of curiosity, I decided to experiment with Rogaine. I regrew so much hair, it was incredible. I used it for 6 months and regrew hair everywhere, and it kept improving. You couldn't tell I was thinning.
I didn't stick with the Rogaine because ultimately, I didn't care about my hair, and I got bored with the experiment. But the experiment proved to me that Rogaine works and I realized that if I had started using it at a younger age, I'd have kept my hair.