PARTIAL great head of hair

WannaBeMe

I am transitioning to natural (its been a few months) and currently half my head has great definition and the other half is stringy and almost straight (well not really but lacks definition and is only wavy). It's the craziest thing because the good parts are 3c.

Any similar experiences? I would love to know how long before the rest of these stragglers kick in to the curl.