Hi again Andi -
sounds like you've already been trying a lot of stuff, good or brave.
Gua sha: Wow - the bloody version? I do it gently over and under my eyes if they are too dry. But I saw what "real" gua sha looks like on youtube! Looks excruciating indeed.
On the other hand I also feared real Chinese
acupuncture with thicker needles and a bit of blood would harm me more than Western type, but it turns out it is helpful and harms me
less, just some of the pricks hurt a bit, but once they're in they hurt me much less than the thin needles. In sessions where they don't hurt at all it seems it has the best effect.
She also
cupped my back afterwards, but that didn't work well, so now after the 22 needles in my front I get around 24 next to my spine, which made quite some difference.
My problem with the acupuncture is that I get too much cortisol, so I have to balance it out better with GABA and sleep.
Really hot bath and then ice - ooh, that'd be similarly excruciating to me. Any baths longer than 3-4' are a pain. And high or low temperature longer than that also. But 1' cold showers are a godsend to me.
Don't know how much you've experimented with supps, but your mentioning muscle relaxers reminds me of my general successes with the amino acid & neurotransmitter GABA for muscle relaxation. That's advanced guinea pig science tho....