I agree with Lynn P. Call in and ask for her supervisor and see what the policy is for her asking for a doctor's note. It doesn't seem appropriate for her to be questioning your illness or your ability to work... that's what the Bureau of Disability does. Her job is to process your food stamps (unless she's like a welfare case worker or something where she has to have documentation on file) and not judge you meanly like she did. Sorry you had this experience. I would definitely investigate it if I were you.