"sinusuklay ko ang buhok ko" or you can simply say "nagsusuklay ako"

Ah thank you for letting me know!

Technically brushing and combing are different. In Tagalog "I am combing my hair" translates as " "Nagsusuklay ako ng buhok." While "I am brushing my hair" can be "Nagbabras ako ng buhok".