Question Dizzy when doing apnea walks

[hansa123]

Hi friends. I have a stupid problem and I am looking for advice. I almost pass out when doing apnea walks. No hyperventilation, then I inhale to about 90%, no packing. Then I start walking and in the first 10 seconds I often feel very dizzy and weak and sometimes need to stop and breathe. I am quite sure that my lungs compress some arteries and reduce the blood flow to my brain. I have similar effects when doing this for static when I am in my bed, but then its not too bad, I guess because my head is on the same level as my chest. I wonder if there is anything I can try as a remedy. Sure, take less air in, that resolves the issue, but is there anything else? I tried some stretches of the chest area to reduce the pressure, but no changes until now. Any advice is much appreciated, thanks.

 

[7BDiver]

I am not convinced that being dizzy is necessarily associated with a blood flow issue. Many people get the feeling of dizziness as if there is a surge of oxygen even from an initial breath for static apnea. See forum discussion on the matter below. I have experienced a BO from packing while standing in my kitchen and did not see it coming, no dizziness or warning at all, just woke up in a heap. I have done similar packing plenty of times before just for stretching/exercising my rib-cage with no issues, just goes to show the risk of that method. Orthosatatic intolerance is something to take into account as it can change easily from hydration alone. I have no idea how to interpret the weakness feeling, perhaps someone with other experience or expertise can share their insight.
https://forums.deeperblue.com/threads/dizziness-during-co2-tables.118413/post-998960