Herceptin and Perjeta side effects after chemotherapy.
I have been on Herceptin Hylecta and IV Perjeta mono therapy. I have 6 treatments left. I had more gastrointestinal issues while on chemotherapy (TCHP) than I did on HP mono therapy (no GI issues whatsoever for first 4 rounds of mono HP). However, since my last two HP treatments, my diarrhea has picked up. I also have upper abdominal pain-sometimes on the left and sometimes on the right. Nausea seems to be a factor on and off. I had upper endoscopy when I was diagnosed in March--no ulcers or H pylori. Bloodwork three weeks ago was normal. My oncologist says it's unusual for me to have normal gastrointestinal function after TCHP and then suddenly develop problems in the middle of HP. I have started back on Protonix (PPI) and Pepcid. Anybody out there experience the same? Thanks