http://www.ctvnews.ca/video?playlistId=1.1784423
Check out the short video about POTS/dysautonomia, and pay attention to the spaced out gaze of both individuals (the guy has it worse than the girl)
I would surmise that both individuals undoubtedly feel spaced out, with serious brain fog.
My opinion, FWIW, is this represents a likely gut-fungi infection.