I took Lyrica for about a year for my Fibro, and I think I gained about 40 lbs in that year - weight I had lost early from a stomach surgery that I did NOT want back!
Because of the weight gain, and some other stresses on the body, the Lyrica just wasn't helping me enough. She did some research and came up with Cymbalta as a good choice for me. I started taking it approx. 2 years ago now and I've had excellent results. I lost about half the weigh I'd gained, and I see a much prettier and healthier body.
My only caution with Cymbalta is that it can clash with other medications, so make sure your pharmacists are aware of EVERYTHING you take, including herbal and "natural" products. Some serious issues have been reported. I know that for me, the C makes me less inhibited, but more cautious around who that happens with. Because of a major clash with one of the narcotic pain meds of mine, the worst side effect is the overwhelming sweating that I experience. It comes along fast and lasts for awhile
I haven't tried Savella, so I've no comments there. Whatever you try, make sure you follow your doctors instructions to the T and drink lots of liquids...most of it water. Don't forget the calories in a can of beer, a glass of wine
Good luck...I wish you much success!