That said, labels can be useful. If other people that are similarly weird have found some tactic (or substance) useful, you might also find it useful. For me, "aha, it's ADHD!" was a huge breakthrough, because it gave me a general direction to search for answers (and meds).
So, uh, to summarize: labels can be useful, but I wish society was not structured in such a neurotypical-centric way. Just let people be different. e.g. If someone says "I don't work well in an open-plan office", just believe them. They shouldn't need a doctor's note.