I experienced drowziness and dizziness. I also had hot flashes and bouts of anger. I am a mother of a 4-1/2 month old baby and have never felt impatient towards him, but felt that way taking this stupid drug. I lost my car key, put out clothes for work the night before and forgot I did that, put my son's bottles in the freezer....and the list goes on. I was at the end stages of a sinus infection. All I needed was some freaking amoxicillin.