Okay, hear me out. I have PTSD and I've started to have horrible panic attacks and these episodes where I hyperventilate badly. I don't know what to do. When I get my blood work done, it always shows that I have low CO2. 

I've never been a big soda drinker but very recently I started craving coke, sprite, basically anything carbonated, even sparkling water which I kind of hated until now. I was wondering if this could be related to me hyperventilating at all? Like, I don't know how that works, do you actually get the CO2 that comes from carbonation or do you just burp it out?

Does anyone know?