Could be several things. I know when I straighten my hair, it takes a while for it to readjust and curl up again.

It could be product build up. Don't know if you are using sulfate shampoos or not. (I'm on my phone so can't see your siggie).

Could be you need a protein treatment. That may help.
3a/b, fine texture, low porosity, normal elasticity, mod-CG 7/11/11

Poo: KC Come Clean, SM Moisture Retention
CO: CJ Curl Rehab, CJ Argan & Olive Oil, Renpure Argan Oil, YTCucumbers, Sevi Pumpkin
Style: AIF, HESMU, Biolage gelee, KCCC
LOOB for second day hair

Like BS/ACV rinses, limit protein/humectants.