Radiation CT Scan and plan today

Good morning, so I have to tell you, my lungs are still really bad and no one has any answers. Today I have my appointment to get set up for radiation and I'm scared to death! What's going on with me, I've undergone 16 chemo treatments, already had surgery and that didn't have me feeling this way. Maybe it's all this stuff I'm reading about rads, the burning, etc... or maybe it's just another down in this roller coaster ride. I gotta tell ya, I'm sick of having cancer! Not being able to breath is really driving me crazy, they ran an antibiotic, I use an inhaler, I cough all the time and it's so painful to my incision sights, feels like I'm going to rip right open. I smoked for 25 years and never coughed, quit the day I went into surgery. They tried six times to get an I.V. in to run the die in order to look at my lungs, after six veins collapsing they just gave up. I pray it's me being paranoid, but I do wonder at times, did this beast get into my lungs? I wish they would get to the bottom of it. Anyhow, wish me luck with my radiation set up today, I know it's a painless procedure, I'm just being a baby and really getting run down. I need a vacation and rads are going to keep me at bay for 7 weeks, yuck!
~Kari