I'm having the same troubles!!! Two years ago I faced a protein overload due to using too much coconut oil. Since I didn't know protein was the problem for a while, I only ended up making the problem worse. After months of trying to recover my hair, I decided to chop it all off and start over. Now, my hair is sensitive to EVERYTHING: protein, AV, extracts....NOTHING WORKS!
I use conditioners with cones because they are really my only option (broke college student who needs tons of conditioner at a time). My hair is fairly healthy, but product builds up extremely quickly on my hair especially coney conditioners so I need to low-poo a little more than I would like to and my ends get pretty dry.

Just wanted to let you know that you are not alone!
3c/4a, hooray!

Beloved Products:
Condish:Naturelle Grow Herbal Blends (Deep Treatment), Garnier length and strength
Cleansers:Bee Mine Moisturizing Botanicals Shampoo, Jessicurl Gentle Lather Shampoo
Style:Darcy's Botanicals Sweet Cocoa Bean Moisturizing Hair Whip, Aussie Instant Freeze Gel