The first night wasn't too bad just some mild insomnia. The second night I tried to go to sleep but was having trouble breathing, heart palpitations and enough anxiety and fear that I wouldn't let go of my wife for most of the night. When I finally fell asleep I was still very groggy and had to miss some work and catch up. Last night I still had anxiety and weird breathing patterns and I've never had any problems with antibiotics before. I started taking them because I have been suffering from a cold for more than a week and finally started to get an ear infection. The sourness went away quick but the side affects are enough that I will discontinue my meds. The one post I read on here about suicidal tendecies had me concerned.