Cymbalta and difficulty sleeping

Has anyone else had difficulty sleeping while on Cymbalta? I have only been taking it for a few weeks, and have been waking up in the middle of the night and have difficulty falling back asleep. I am curious about what time of day others are taking it. Right now I am taking it in the am.

I took Cymbalta for back pain several years ago and it was an awful experience. Gave me a terrible headache. But I guess that doesn't really answer your question, does it? I just couldn't take it.