Too much Ativan and Klonopin have affected my balance and made me extremely tired. There's been a time I accidentally took too much Lamictal, and I had a really bad headache. With Seroquel, when I ran out, my doctor gave me samples of the Seroquel XR. It was awful. I thought it would feel similar to my regular Seroquel, but it was a higher dose and made me feel drunk the next day. I barely made it to work without getting into an accident, and I felt like I had to excuse my demeanor at work by saying I was "sick" when really the XR made me so out of it.