help...my hair looks like straw after using castile liquid.

I'm trying to avoid solvents and parabens, so I bought some Dr. Bonner's liquid castile soap from the health food store. As soon as I started to wash my hair with it, I could tell it felt weird, like it was putting something funky on my hair. I rinsed with white vinegar, and it felt a little better. It is dry now, and my hair looks very dry and feels like something is still on it. It is quite dull-looking, also...no shine whatsoever. Does anyone have any suggestions?