I Have Discomfort In My Chest, Like A Feeling Of

I have discomfort in my chest, like a feeling of fullness, with pain if I twist. My breathing is laboured have to work hard to achieve satisfying deep breath (more often not succesful) this situation seems to be influenced by indigestion which I also have quite frequently. I have recently visited doctor and blood pressure, heart rate, oxygen levels are all fine. It is only when I sit and ponder I remember all the symptoms as I have mentioned this problem before but not put all together. It seems to be getting worse, having difficulty getting to sleep due to the difficulty in getting breath