I have had very bad side effects from Cymbalta - it is a powerful drug. Before you commit to taking it for any extended period please check out the Facebook page Cymbalta Hurts Worse - getting off the drug is very, very difficult - I was on it a long time and it is taking the same number of years to get off it. Please be informed about it before you get stuck on it.
I'll second the difficult Cymbalta wean. I took it for several years for anxiety, not for fibromyalgia. It caused me mild side effects the entire time, including an almost always present mild nausea, and some other annoying issues, but I tolerated them because I believed it helped with the anxiety enough to make the side effects worth it. I do tend to be sensitive to a number of meds, so taking them is sometimes a matter of putting up with side effects or not being able to tolerate them at all.
After two or three years on Cymbalta, I decided to wean. I'm retired now, but when I worked it was in management at a psychiatric facility, so I always had access to medical advice. I told the doctor who'd prescribed Cymbalta how things were going, and that I didn't want to put up with the side effects anymore, and he advised a slow wean over three to four weeks. Long story short, the withdrawal was way too intense for me to do it in that short of time, and in the end I stretched it out over a period of 9 months. I could have easily stretched the wean out longer, because the withdrawal after 9 months of gradually decreasing the dosage (they are capsules with many tiny beads of medication inside - I was literally opening them and counting out lesser and lesser beads, which I learned from an online Cymbalta wean page) was still very significant.
When I worked at the psych facility, I saw many patients on many different meds. Some had a more difficult time than others finding something that worked, and some had a more difficult time than others weaning off of some things. Not everything requires weaning. In my experience, Cymbalta was one of the tougher ones to discontinue.
On the other hand, some people don't have issues with meds and side effects or withdrawal. I'd never discourage anyone from taking a medication recommended by their doctor, but I'd never want anyone to think that meds never come with a lot of baggage, either. Being someone with drug sensitivities and several drug allergies as well, I'm not interested in taking medication for my fibromyalgia. It's a choice each person has to make for themselves.
