I used to experience this where I would need to take deep breathes but still I felt like I was lacking air, it is a different sensation to hyperventilation.
That might be
Air Hunger/Dyspnea where you feel like you can't get a satisfying breath of air, no matter how deeply you breath.
Budwig Protocol for cancer ... it as extremely interesting and I plan to do an experiment with it.
Adding to your self-threadjack with some hopefully useful information...
I've tried the Budwig Diet several times. The first two times eventually left me feeling utterly exhausted. I gave it a third try after learning that I need even more magnesium while on the diet. I think that the extra calcium in the Bugwig Diet was throwing off my calcium/magnesium balance which led to the exhaustion. Increasing my magnesium supplement made all the difference.
For benefits, the first time I noticed somewhat reduced anhedonia, improved mood, better color vision, and an increased desire to do things. The third time I didn't notice those effects. I also noticed that each time I started the diet the Budwig FOCC mixture tasted _really_ good initially. It was like my body loved it and craved more. Within a few weeks that effect wore off and I also started having more oily skin. Maybe I was oversaturated with flax oil.
There's a lot of misinformation about the diet on the web. Here are couple of very good Budwig Diet sites:
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www.healingcancernaturally.com/index-budwig.html - contains detailed information based on Dr. Budwig's books, very extensive and well researched FAQ
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www.budwig-diet.co.uk
A note for trying the diet: I've tried just yogurt and it didn't blend well enough. Store bought cottage cheese is usually loaded with additives. I tried home-made quick cottage cheese (using vinegar) but it didn't blend well with the flax oil.
Well strained greek yogurt, or quark (which is what Dr. Budwig used) works best. DIY quark is easy. I can give you a simple recipe if you'd like to try it.