Information and opinions on Diabetes from Donna at MyDiabetesCentral.com. The HealthCentral Network, Inc. (www.HealthCentral.com) is one of the top health destinations on the Web, with more than 35 condition-specific, wellness and general health Web properties. http://www.healthcentral.com/diabetes/c/714534 http://www.healthcentral.com/diabetes/c/714534/rss self application/xml en-us 15 120 19 http://www.healthcentral.com/images/hc_logo_sm.gif http://www.healthcentral.com/diabetes/c/714534 http://www.healthcentral.com/diabetes/c/714534/62976/byetta-metformin Fri, 13 Mar 2009 11:56:54 -0400 Donna I'm on the highest (almost - 2500) mgs. of metformin and 10 mcg. Byetta twice a day.  I want to work with my doctor to get the best results but i don't want to gain weight.  I've lost 30 lbs while taking byetta, eating better, and excercising anywhere from 1-3 times a week but now i'm experiencing a flutter in my chest and little pains in the left side of my chest (maybe a stomach nerve?--vagus nerve?).  Didn't have them when i... http://www.healthcentral.com/diabetes/c/714534/62976/byetta-metformin