Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Had to return this one...

I realized this liquid multivitamin was causing me to get headaches, increased my blood pressure, and generally caused a feeling of anxiety. Too bad because it had the mix of vitamins and supplements I had been looking for. However there were several uncommon herbs thrown in that I believe caused the problems for me. I did not have this problem with Alive! liquid but that didn't contain iron so I switched to this.Next of my list: Source of Life.