I Take 5mg Of Amlopidine..Use To Take It At Midnight..started

I take 5mg of amlopidine..Use to take it at midnight..started taking pill around 7am...My cough seems worse and fatigue throughout the day..Seeing my GP next Monday..Should I ask him to switch meds..Or she I try back taking it at midnight..when I had less side effects except urinating more than usual.