Hair shedding seems to have suddenly increased after higher Finasteride, should I decrease dose?

I understand how frustrating it can be to see increased shedding, especially after you've been on a stable regimen for so long. When increasing the dose of finasteride, it’s pretty common to experience more shedding, as your hair follicles may be transitioning into a new growth cycle. This can push out older hairs, which is why you're seeing more shedding. While it can be alarming, it’s usually a temporary phase that should settle as your hair adjusts.
If you’re worried or if the shedding continues for more than a few weeks, it might be worth discussing with your doctor whether going back to your previous dose would be best. Sometimes, it's just a matter of giving your hair a little more time to stabilize, but I get why you'd want to keep a close eye on things.