Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Hema-Plex and Stomach Pain

This product seem like the perfect supplement. When I take this product I get the worst stomach pain I had in my life, it feels like I am constipated but no signs of hardness in my poop. All my abdominal area is in pain, with gas. It almost feels like I have been food poison. I don't think I will be taken this anymore.