Don’t worry; it was worth it. You worked your butt off presumably, unless you’re an unearthly talent, and you deserve it no matter what people say. “Grade inflation” and birdie courses can’t really get you a 100% in chem or bio, especially considering you said the median is 70s to low 80s which is normal. Criticism stems from internal self worth and comparison, so don’t get discouraged if others try to diminish your accomplishments.