Is anyone taking Verzenio for breast cancer?

Verzenio- anybody on it? I started it a week and a half ago. The first week the side effects were as expected. Like clockwork last Friday I got much worse and by Sunday I had what felt like a bad diverticulitis flare, I had a fever, nausea and extreme lethargy. I stopped taking it and went to the Dr Monday. He told me to stop taking it for now ran a lot of blood tests and ordered a ct scan of my abdomen. Has anyone had a similar experience. I’m afraid to start it again.