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I am currently a university student applying to companies for internships. In my first two years at university, I was experiencing symptoms of an autoimmune disorder that went misdiagnosed as something completely different (I was receiving incorrect treatment). I feel like I could have been one of the top students in my class, but the pain and discomfort really held me back. Despite that, I did reasonably well in my first two years (85% average).
I am currently in third year and after receiving the correct diagnosis and treatment recently, I feel much better at school. I'm confident I can do a lot better now, but there won't be any numbers to prove it until I finish the fall semester. I am tempted to tell companies about this situation on my cover letter to indicate that my value is higher than what my grades indicate now that I'm healthy, and that I was able to do well despite the setbacks. However, at the same time I am worried some companies might see a chronic disorder as a negative thing.
Is it a bad idea to share this on my cover letter?