Would it be presumptious of me to assume that you may be or may have been under age and obtained a second license with false info. in order to purchase alcohol or enter 21 & up clubs?
Two things to be concerned about: FRAUD & IDENTITY THEFT charges
If your "fake" id is under a real name and a real SS# not belonging to you, your could be looking at identity theft.
If the number and name, etc. are ficticious, fraud charges.
Hope this helps. Good luck.