Dirty Hair!

Meagan • IT Consultant | Wine Enthusiast | Tired!
So, I don't know what is going on with my hair! I scrub with pert plus, no extra conditioner, two to three times every time I wash my hair (every other day at minimum) and my hair is STILL dirty! 
 
I have a patch at the back of my head that just stays oily. All the freaking time. It's driving me insane! My diet has changed a little, my stress is up, I understand it could be my body just revolting, but how do I get it fixed?!?! I can't rock sunglasses on top of my head 24/7 for much longer!