That's completely fine, I also can't spell my name out when asked suddenly, I understand how you felt. Once a man was filling a form on behalf of me (idk why he didn't handover the form to me) and started asking me questions and I was really struggling to answer the questions as I was stuttering on each word. So in the physically disabled column, the man was going to put a yes because of my stuttering. I was surprised and told him that it is not a physical disability. The man looked at me weird and then put a no on the column.