Is It Normal To Experience Worsening Chest Pain And Shortness Of Breath At Night?

Hello, I wanted to ask. It’s been a year and 2 months living with chest pain. In the first weeks I went to see a cardiologist and he told me that there is nothing wrong with my heart. And now my chest pain chest gets worse in the night during sleep and I often wake up gasping for air( shortness of breath) And I wonder what’s happening if they told me that my heart is okay. Is this something to worry about? Thanks