ibromyalgia
"I stopped taking Savella during the 2nd week of the titration package.  I didn't feel any pain relief; maybe if taken longer term I would have.  I experienced many of the side effects others have discussed, including bloating, weight gain, anxiety, and dizziness. 

I stopped taking Savella because I experienced a severe panic attack followed by weird heart beats, twitching muscles, electricity zaps, and vertigo. This is how a Serotonin Syndrome began for me 1 1/2 months ago for which I was hospitalized. 

Perhaps I am at greater risk for Serotonin Syndrome, having had it before. Still, I caution you to be careful if you are on other serotonin medicines, and Imitrex. Savella will augment the serotonin effects and may leave you very sick."