It's very likely that you have a lot of silicone build-up from the products youre using. That, along with the hairspray is very drying to your hair, and could be causing your scalp to overproduce oil.

Have you considered the curly girl method?
20 y/o lifelong natural {4a-O ; spongy ; porous ; coarse ; dense ; ~MBL stretched}

products {'poo: TJTTT shampoo | RO: TJTTT Condish, YTC Condish | LI/style: TJTTT Condish, KCCC, homemade cocoa butter cream | DC: condish + ayurvedic powder(s) | PT: condish + NPF | oils: castor oil, grapeseed oil | other treatments: probiotics, tea rinses, AVG rinse/spritz, oil rinse | sealing method: LOCO}

CG-friendly Products List!