After you file

It can take up to 12 weeks for an amended return to process.  You can check on its status using this website:
<a rel="nofollow" target="_blank" href="https://www.irs.gov/filing/wheres-my-amended-return">https://www.irs.gov/filing/wheres-my-amended-re...>

If you can't get any info, or it has been longer than 12 weeks, you can phone the IRS to check on its status:

IRS:  800-829-1040  hours 7 AM - 7 PM local time Mon-Fri

When calling the IRS do not choose the first choice re: "Refund", or it will send you to an automated phone line.  
Choose option 2 for "personal income tax" instead.
Then press 1 for "form, tax history, or payment".   
Then press 4 "for all other questions."
Then press 2 "for all other questions."  It should then transfer you to an agent.