Well you may have a mess if you actually filed a federal tax return in February and the return was Accepted by the IRS. Because you cannot just add income to a filed and accepted tax return. The tax return can only be amended to add additional tax data.
First, you need to verify that the tax return was actually e-filed and accepted. Use this TurboTax website to check the status of an e-filed return and if it was either accepted or rejected - https://turbotax.intuit.com/tax-tools/efile-status-lookup/
What is the status of the e-filed federal tax return and if Accepted, what is the date it was Accepted by the IRS?