Trouble catching my breath on Verapamil

This is my second time starting Verapamil. I’m on 120 Extended Release. I’m dizzier, but that is ok. I already have low blood pressure. I’ve been taking it for six days now. My fatigue is also worse. But this morning, I did a walk with my husband. Now, I’m having trouble catching my breath when talking. It’s not severe, but definitely uncomfortable. No chest pain.

It’s sometimes difficult to reach my doctor, so I wonder if anyone else has experienced this and if they stopped taking it for that reason.

Thanks,
Susan