Attendance ?

I do miss a lot of school but they’re all excused . I’ve missed about 20 days this school year and that concluded of a week that I was sick, other days that I didn’t feel good (I have a shitty immune system) and when the weather was unsafe and the roads were blocked but my district was dumb and decided to stay open. I don’t think it’s really reflected in my grades, since most of the days I missed last semester and ended up with straight As as a final grade. I do have a couple Bs but that’s bc of just HE material itself. So do colleges really look at attendance? Will it matter how many school days I missed if they were all excused?