Be gentle, I'm not good with technology 😆
So I'm flying to the USA this week with family (long awaited and much looked forward to trip)
According to the Gov site, the US will accept proof of vaccination and this can be in the form of the "Covid Pass" on the NHS app.
I have it on the app with the little QR code on my phone. It's valid for 1 month.
My mum called me today and during the conversation she informed me that I should have "registered" on the NHS app by recording a video of myself saying a code??! They then emailed her saying she was verified.
She said that's what she did when she downloaded the app.
I downloaded the app last summer and I never had to record a video of myself?? From what I can remember I just entered my NHS number and that was it?
I'm now scared that I won't be allowed to enter the US 
Do I need to do anything?
Am I being completely stupid? Google hasn't helped me much....
Thank you!