It is, most likely, just manifestations of VM. There’s a pretty lively debate here about what causes VM, and probably there is more than one mechanism. I look at it from the more recent scientific literature which suggests the brainstem, hypothalamus and thalamus are involved along with some not great biochemistry and some sensory confusion. What does that mean? Really primitive parts of my brain that handle some really basic functions (heart rate, digestion, balance, pain input) are messed up. It takes a long time and a lot of personal experimentation to find that balance again. Given my genetic history, my best hope is to manage my lifestyle and triggers to the extent I can, medicate when necessary and hold the line. Read the 2014 survival guide. That should help.
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