Okay, so this tinnitus thing is an informal experiment that I'm organizing for people who are interested. Which is a thing that is perhaps worthy of discussion.
But I feel you're mixing too much new age stuff with hard science. Let's get some facts here and see where we agree and perhaps diverge.
Fact 1: the WHM gets you high on adrenaline [1]. It's actually higher than peak adrenaline during bungee jumping. In [1] it is also stated how the WHM is different than hyperventilation (neurobiologically at least).
Fact 2: The alkalosis thing is correct [2]. The doctors that I talked to (Radboud Nijmegen, The Netherlands) said that it was seemingly fine since every other indicator was fine. According to my conversation with them alkalosis happens when a person is dead, for example, but if it's the only thing that's negative, then it's probably fine. These doctors were also the authors of [1] as I was one of the research subjects.
I can see the medical community disagreeing about something like this (and again, I'm not a doctor, so if one wants to be on the safe side, assume it's bad, safety first).
> If you are looking for spirituality, try meditation instead.
I agree. The WHM is not something to be done on a whim.
[1] https://www.pnas.org/content/111/20/7379 -- quote: Epinephrine levels in trained individuals were even higher than those reported in a recent study in which acute stress elicited by a bungee jump was found to suppress cytokine production by leukocytes ex vivo stimulated with LPS (13).
[2] same paper -- quote: and an increase in pH (reaching up to 7.75 in individual subjects; Fig. 2 and Movie S2), indicating acute respiratory alkalosis, which normalized quickly after cessation of the breathing techniques.