I've been following the HS1 for half year once a week and am currently on headstand 4x48s holds.
Physically it's not difficult exercise for me, however quite uncomfortable for my head. I'm putting a thick towel on top of the yoga mat to soften the pressure for my head, but there is still uncomfortable pressure on my head and neck. While the time spent holding the position was increasing, I started to notice small red dots in my face after each session. Mostly the small dots are around my eyes and eyelids, but littlebit also in forehead. I assume these are ruptured tiny blood vessels. In general, my blood pressure is normal, I'm trying to take this exercise easy without effort, and I'm weighting 91 kg. Is that normal side effect? What else can I do to improve this situation?