M.O.
Honey, you had ONE CT scan. The risk associated with this is basically zero.
I'm going to be a statistics nerd for about five sentences, and then I'm going to go back to talking about you. So please bear with me. Okay. The link between CT scans and cancer is very weak. Yes, across the population, there's a higher incidence of cancer among people who have had CT scans, but people who've had CT scans, in the aggregate, have more health problems than people who haven't. Otherwise they wouldn't need CT scans. And you can't go around giving medical tests to people who don't need them, because that's unethical. The few studies that do control for other health problems (mostly involving medical professionals who administer CT scans) indicate a tiny uptick after daily exposure to low-level radiation for years, and even then, the increase in cancer rates in this population is under 1 percent, and it could be attributable to the fact that medical professionals seek out and get good medical care, so if they have cancer, it gets *caught.*
Bottom line is? That CT scan didn't do you any harm. Your risk of getting cancer is the exact same as it was before.
What you do have is an issue with anxiety. And that needs to be treated. You have a preschooler, and he needs a calm mom. There is nothing wrong with this. I've taken anti-anxiety meds in the past, and I may take them again. It's just something that many people -- most people, over the course of a lifetime -- have to do from time to time.
I can't tell you what the origin of your respiratory issues are, but I can tell you that the *pattern* the doctor followed was very ethical. That's what doctors are supposed to do: eliminate the worst-case scenario first, then eliminate the next-to-worst-case scenario, and so on. Otherwise, doctors would just run around saying "Oh, you're fine. It's just anxiety. Just take two aspirins and call me in the morning." That's patronizing, and sooner or later, a doctor who does that is going to miss something serious. You can't risk NOT testing for the serious things, just in case.
I understand that she was brusque, and she may not be the right doctor for you. I try to stay away from the brusque type myself. But you haven't been exposed to any harm. Now that you've had that one test, you know you don't have this serious problem. That's one LESS thing to worry about.