If the income is already included on your Sch C, then based on your facts it appears you would be doubling your income.
I recommend you enter the income of each 1099-MISC separately so you are able to locate this quickly should you be audited or just want to check for yourself.
This would just be a matter of subtracting out the 1099-MISC income from what you have included and then entering each 1099 separately.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
