Hello nettie - you are probably expelling microscopic parasites and/or toxins. HUMAWORM is not formulated to give you loose stools, but loose stools will occur when the body is trying to quickly get rid of harmful things - like parasites and toxins. Diarreah and vomiting are the body's first defense when it is encounters something that should not be in it - you may feel some nausea also. Just hang in there - the loose stools will subside. Thank you!