When i take a deep breath i feel a weird vibrating sensation in my lungs. i'm not sick or anything what can be the cause ? and i don't have any pain

Speak with your dr: With your previous medical history of abdominal mass and colon cancer, it's always best to start with your doctor first, who knows your history ; may able to assist better in answering this question. F it feels or sounds 'crispy' or like it's rubbing on something, that's not normal to have these 'vibrations from the lungs'. Most importantly, let him/her find the cause ; the answer will be there.