I idiotically overdosed on Lyrica a couple of years ago. I don't know how much I took, but I felt like I was going to die and I could hardly move - I dropped to the ground, stayed there for awhile, and then tried to slowly crawl to the bed. I was extremely hot and sweaty and in pain. It's really hard to describe. Thankfully I passed out eventually and woke up many hours later just fine. Whew! What a dumb thing to do, it wasn't even my prescription... I was going through some issues at the time.
