Hi @montanamoon and welcome. I'll just chime in here to tell you that I had progressively work oHCM symptoms over about 17 years. To the point where I would have to take 2 breaks going up a single flight of stairs, couldn't bend over to tie my shoes without palitations, dizziness, chest pain,..... After 2 (yes, two) days on Camzyos I was noticing "hey, that should have hurt a lot more... but after just 2 days, it must be in my head." By day 12, I had NO symptoms whatsoever. So for the lucky some of us it works hard and FAST. Maybe (hopefully) you are one of us. Keep the faith!