Daily shedding is normal. I think they say 50-100 hairs for the average person per day. I think you would be the best judge of what's excessive for you. Have there been any other changes besides your CO washes lately? Diet, stress, medication, manipulation, etc.? Some people also go through seasonal shedding. Any or all of those things could play a part. Your hair is at it's most fragile when it's wet, so if you're doing CO washes daily or every other day, you'll have to be extra careful with detangling and styling.
I've never used Emergencee or Keraphix, but I was under the impression that they are pretty heavy duty. Since you say you use them regularly, maybe your hair is in protein overload. That might explain the breakage and why doing more protein treatments isn't really helping.
For the time being I would definitely say focus on moisture to give your hair elasticity and be extra gentle whenever you manipulate it.
HTH