Hey there,
I have been no poo for 3 weeks now. The transition has been quite easy for me (I think its because I had only been washing my hair every week before), but there is one thing about my hair that has not improved.
I have very fine and thin hair. Ever since no poo, its gets very strange. When I brush it downwards, it says super flat on my head. When I try to “fluff it up” it just stays upwards!
I think this is because of the increased natural oils on my scalp, but how can I fix this?
I have just been wearing my hair tied back to hide this problem, but I love having my hair down!
Hi; I have had a similar issue: No Poo (WO*) for ca 6 weeks, hair is fine (but I have lots of it, so people always assume it’s thick - it definitely isn’t) and not very porous. It is short and choppy (unlike yours) and I live in a soft water area. (*I did apply my usual permanent red dye a week or so ago, including using the conditioner that came in the packet afterwards; hair could prob do with a WO wash right now…!)
What seems to work for me is to scritch, massage, preen and BBB before going to bed (when my hair does exactly as you describe - either stays flat to my head if I brush downwards, or stands up towards the ceiling if I brush upwards). I fluff it a bit then, and it sort of does its own, surreal thing - but in the morning I run my fingers through it and it seems much more well behaved.
Hope that’s helps. Stick with it: three weeks in can feel like a lifetime but it’s still early days (that’s rich coming from me, given I’m only six weeks in myself!), so your scalp is still going through adjustment. Best of luck! 
Yes, one more vote for the massaging/scratching/scrubbing. I do this morning and night - a good old scrub all over as if you’re washing your hair. I also found that the boars hair brushes everyone else uses just stick my hair whichever way I brushed it, flat against my head or whatever, just like you’re describing so I’ve stopped using that for now and I just use a wide toothed comb (wide like the Afro combs) after I’ve scrubbed it in the morning (at night I leave it to do its own thing). Good luck 