It's really hard to say what's going on, but I would definitely read the hair board for advice. There is so much information there and you will probably come across some posts that apply to your situation. That's pretty much how I improved my hair. Good luck to you and let us know if you're hair improves.
I have 3A hair. I've discovered Jessicurl shampoo and Too Shea conditioner and I'm thrilled! Long-time LA Looks sport gel user.