I've been going through radiation now for 12 days I've got cancer on the outside of my skin. It's over under my left breast but closer to my lip notes it's kinda in between the two places. I started having back problems on back rib cage some call it, it feels like somebody is pressing on it. And it's interfering with my breathing to, and I'm on oxygen on top of that. I'm just having a hard figuring out what's causing my back problems that I didn't have before. Thank you for listening to me.