Instruct: Classify a review into positive or negative sentiment.
Query: I HAD A BAD REACTION!!

Holy smoke! I am a very healthy 36 year woman, took a HALF a pill at 11PM, was woken up by my son at 7AM and I could not stand up! The room was spinning horribly, I threw up and was lying on the bathroom floor waiting for my doctor to call me back. A headache and continued dizziness continued for about 36 hours. FROM HALF A PILL! Buyer beware.