Do you dismiss a compliment? Do you attribute success at your work to luck instead of your intelligence, creativity, or effort? Do you hide who you think you really are and show others a facade to please them?
Many adults (and kids) with ADHD have trouble accepting positive feedback about themselves. Years of hearing about their deficiencies or experiencing challenges related to having a neurodivergent brain lead many folks with ADHD to walk around with a persistent feeling that they are just not good enough.