Living with grief is like living with a broken heart that can never really be mended by a new person

I'm 1.5 years out since my dear mom left from the horrible horrible pain she was in from fucking cancer. I was 4 months pregnant when she died. Went through post partum missing her everyday. My baby has helped me heal but since the last week I've been going through a difficult grief wave. I have been having weird dreams of my mom and also flashbacks of her suffering in pain during her final days. I just feel like I'm living with a broken heart.