TT is trying to give me a qualified business income deduction. But I don't have a business. I report an NEC each yearly due to honorarium for mentoring medical students

If the income is reported on Schedule C, it will qualify for the Qualified Business Income (QBI) deduction.   Do you have a Schedule C in your return?  

Do you have any Form 1099-DIVs with amounts in Box 5?   If so, those qualify for QBI too.