Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible Product

The last order of this product made me sick. When I opened it - it smelled like formaldehyde but I thought well maybe its something else but I took my usual dose on different days and noticed I didn't feel well but I thought it could be from something else. So about the third time I took it, I became sick and threw up - it was awful - my stomach was irritated for a few days afterwards. It could have been a bad batch because I've ordered this product before and my previous orders did not smell like formaldehyde.