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  "map_content": "I get ocular migraines too but only very occasionally thankfully, and so far (touch wood) without pain. Just like staring into a bulb after-burn image for 15-20 mins. I did used to have intracranial hypertension and headaches that lasted for weeks and months at a time, which made life absolutely miserable. I used to have to take high dose steroids to get rid of them. For me, it was estrogen dominance (and inefficient respiration) gone badly too far. \r\n@metamitya Just curious, is it breathless exercise that sets them off, or could it happen after non-breathless exercise, such as weight lifting? If only after breathless exercise it could be low oxygenation of the brain leading to low brain energy due to excess lactic acid/low CO2, due to the more primitive and inefficient glycolytic shift (2 ATP of energy from glycolysis vs 28 ATP of energy from oxidative phosphorylation) vs the usual efficient oxidative form of respiration when not out of breath. The CO2 (produced by oxidative phosphorylation) is needed to release the oxygen molecule from red blood cells and deliver it into the tissues (Bohr effect). When we stay in the lactic zone too long (producing lactate instead of CO2), we get muscle cramps due to low oxygen, which means muscle cells don\u2019t have enough energy to return to their soft resting state, so they tighten up. So a migraine headache could be a sort of brain cramp in that case, a side effect of being out of breath longer than your body can tolerate.",
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