Welcome to the group @rover27. The first week I felt nothing. Then during the second week, I started to feel lightheaded, more fatigue, more shortness of breath upon exertion, increased heart rate, and higher blood pressure - I felt crappy! I contacted my cardiologist and after some discussion he sent me for an echo. The results were fine. He suggested that it takes time for the medication to build up in your system. He also said we could discuss also taking Metoprolol.
The lightheadedness is gone. I still feel fatigued and I am still short of breath upon exertion. I am on day 20.
Are you taking any other med that may be interacting with the Camzyos? I suggest calling your cardiologist to let them know your symptoms. Trust but verify.