Will I be penalized for excused absences despite my good grades?

As of late, I have been concerned about my excused absences in school. I am a junior in high school and am getting straight A's. In addition, I am in all honors and AP cles, and my GPA is about 4.64 (just to give you an idea of what kind of student I am). My main concern is that despite my academic standing, I might be penalized for my excused absences. So far I have been absent 13 times this school year, all excused (mostly all of them due to illness). I go to school in Ohio, and my student handbook states that 15 unexcused absences will be counted as chronic truancy. However, from what I have read Ohio law requires a doctor's note after 5 excused absences in a semester. In my history at my high school, I do not think my school received any doctors notes for my absences from my physician. In freshman year, I know for a fact I had over 15 excused absences in a year. In sopre year, I know that I had 12.5. I haven't received any notes for my absences in those previous years, and have umed that my grades don't really warrant an investigation into my absences. The problem is, I am probably going to be absent a few more times this year due to upcoming AP tests this week (which I take very seriously). I am worried that once I surp the 15 absence mark, I might have to attend some hearing or something of the sort. Even though all of my absences have been excused, I don't think that really matters once you've missed so many days. I haven't been notified of any problems yet but I don't want it to bite me in the later on. I'd rather find out if there is a problem or not right now, rather than at the end of this year or in my senior year. I wouldn't want this affecting my graduation or acceptance into college. I was hoping somebody would have more experience with these kinds of things and could shed some light on the issue.