Personal Statement about Mental Health vs. Addendum/Character & Fitness essay? Do I need both?

Hi everyone!

I took a year off in undergrad as a medical leave of absence, during that time I was hospitalized and diagnosed with Bipolar 2 disorder. I was thinking about writing my personal statement about how learning to manage and cope with my bipolar disorder has made me a more compassionate and critical person. I know that the year gap in my undergrad degree requires an addendum/character and fitness essay, but if I write my personal statement about this part of my life, do I need to also write an addendum? Am I better off writing my personal statement on something else and leaving this story to just be told in my addendum/character and fitness essay?

Thank you!