I'm worried about a never-ending cold.

I used to pride myself on having a healthy constitution with hardly any minor illnesses, but of course, as I get older, have children, and my immune system weakens, I guess that's to be expected... Even though I go to the pediatrician less often than the kids do, I keep catching colds almost every week. Whether it's a sore throat, a stuffy nose, or feeling cold and shivery...ㅠㅠ There's a limit to how often I can go to the hospital, and I'm really 고민 (worried/conflicted) about it.