CT scan due

Hi my name is carol , I have copd and I went to the drs because I thought I had an infection or exacerbation, they took blood and sent me for a chest X-ray and the bloods showed I had a bit of an infection so I had antibiotics, the X-ray showed a shadow which might be the infection, but now they are sending me for a CT scan to see if it’s cancer and I am terrified, I’m thinking I’ve got all the signs , my arm has been sore for about a year but I didn’t think much of it till now , my head is really itchy the last 2 days and apparently that’s a sign too, I’m also coughing up a tiny bit of pale orange mucus in the morning but clear the rest of the day , I’ve also suddenly got quite dry eyes as well , I feel like I definitely must have lung cancer