I have been sick with a cold/flu
for three weeks. Two days ago, I developed diarrhea
. It seemed to occur immediately after eating. Today, the diarrhea was bright yellow and I passed something the size of a small grape (also yellow in color). I'm currently on synthroid (for hypothyroidism), effexor (for depression), and metformin & byetta (for insulin resistence). I've been on the Byetta for nearly a month, but have not suffered any side effects to date.