Diagnosed with Her2 triple+ September 2019. After chemo and radiation, took Anastrozole for 1 1/2 months, experienced diarrhea then after 3 week rest began Exemestane and diarrhea after 1 1/2 months. Treated diarrhea while on Exemestane with 4 imodium/day. Also taking Herceptin infusion every three weeks – last one this week. Had flex sig procedure and biopsy showed chemo induced colitis. Stopped the Exemestane last Friday. Wondering if the AI's with Herceptin might be the reason for the diarrhea or just the AI. Disappointed that I can't continue on an AI and not a candidate to take neratinib after completion of the Herceptin because a side effect is diarrhea. Plan is to take tamoxifen. Anyone else have a similar situation?