Hi-I've been on Lyrica for Fibro about a year..I started out with 75mg twice/day now am taking up to 300mg a day. I've noticed lately (past month) that when I lay down, my heart feels like it's "jumping" in my chest. It seems like it's with every 4 breaths or so and then my heart jumps. Right now, as I'm writing, I'm noticing it too. It's a big thudding feeling, like one huge heartbeat. Does anyone else out there experience this?? Thanks!!!!