been doing 'no poo' for 3 weeks but greasy roots.

[booyhoo]

as title says 3 weeks of no poo. i have been using my usual amount of conditioner with about 2 capfuls of white vinegar. working it into my scalp and all trhough my hair, leaving it on while i shower, shave etc and then i rinse thoroughly with warm water, then rinse with white vinegar and then rinse with very cold water. but i notice my roots are always ever so slightly greasy but also occasionally but not every time, i notice like tiny white bits around the roots aswell. it doesn't look like dandruff and my scalp isn't itchy. btw, i use the white vinegar to remove and product residue.

any suggestions?

[booyhoo]

bumpy bump