Do I need to report my 1099-MISC in 2018 if I reported the income in 2017 for my DBA freelance graphic design business?

[Critter]

Did you get a 1099-misc for 2018 for income you reported on the 2017 return ?

[JeffG]

Your answer is Yes. 

The IRS and state agency would have received  a copy of the 2018 1099-Misc and expect to match that income with your 2018 tax returns. 

If the income did not belong in 2017 - then you would need to amend your 2017 tax returns to correct that.