Please help hair scientists

I have 2 problems both of which I will explain here.

(CONTEXT I HAVE 4C HAIR AND IM A CIS TEENAGE MALE)

1. I dont understand why but my hair has always been dry, I’ve tried different things such as cutting it off and regrowing it while putting in oil but no matter what it continues to stay dry

2. I keep waking up and noticing the hair at the back of my head being straight as if it was straightened with a curling iron , I dont know why this is happening and should I be concerned?

I’ve tried asking google but It never gives me answers, If anybody could answer these teo questions of give me info about whats happening that would help so much.