One thing I'm noticing is that my voice has been a little deeper. Also in the past I've had an issue with my voice randomly sounding very hoarse at times. Since I've started TOFM, my voice had been much more consistent on days when I'm on the sub and when I'm on an off day there's times where it'll go hoarse for a bit again. I'm guessing that's still my body adjusting to the sub and it needing more time to get up to optimal levels.
Edit: Also, there's only been one day where I felt like I shouldn't run the sub. Every other day I've just wanted to keep running the sub but I wanted to follow the given instructions at the start at least.
Edit: Also, there's only been one day where I felt like I shouldn't run the sub. Every other day I've just wanted to keep running the sub but I wanted to follow the given instructions at the start at least.