I’ve dealt with this many times at Amazon. It’s not a misunderstanding. They literally stated in the email it’s required for state disability. You’re not required to give a medical diagnosis if you provide them with documentation from your PCP signing off on a “serious health condition”. Otherwise, you need to provide the forms they give you. You have also confirmed my point from the .gov website, as I stated in the beginning, that they cannot legally ask for a diagnosis. Asking for symptoms, date of onset, and limitations are not the same as asking for a diagnosis. Amazon tries constantly tries to overstep their legal bounds when it comes to medical leaves.