Raw or plain psylium with water works like a broom to clean out your system naturally and easily. You must've used too much, or too little, and make sure it's got no additives.
Try one teaspoon with a glass of water and build your way up to as much as you need. If you're having die off put in a tablespoon of liquid benonite clay to absorb the toxins. That's called a P&B shake and it works. You can add unsweetened cranberry juice, yogurt and stevia for flavor.
They sell liquid benonite clay for about $12 a bottle, but you can buy the dry benonite clay (way cheaper) at the HFS used for body masques and mix 16 tablespoons to 2 cups pure H2O in a jar (not covered too tight because it releases gas) in the frig and get the same thing.