What Causes Abnormal Bowel Movements After Having Colloidal Silver?

I am taking colloidal silver for 2 weeks and have noticed a difference in bowel movements. They are much firmer and harder to eliminate and leaves me feeling like there should be much more. Also, it s like gas is trapped in my body and not releasing. (I know that s probably a good thing) so, do I increase the CS or stop? thanks Nancy