I took savella for awhile and it helped my pain initially but I also had shortness of breath and sweating due to an increased heart rate. I also got very constipated due to the tachycardia and sick to my stomach a lot. This didn't go away with time and so I had to go back down to a dose that did not cause this side effect and stay on it for a month before increasing by 12.5 mg each month until I could be at the full dose without having tachycardia. Monitor your heart rate and if it is high make sure and talk to your doctor about it because it will end up making you feel really sick after awhile. Savella eventually stopped working for me also so I quick taking it. I hope you have much better luck with it than I did!