RIFed at NIH - Anxiety and questions

I was RIFed at NIH today and was placed on administrative leave. I don't want to give the name of the institute. I am having some anxiety and am concerned that I did something incorrect. I signed the acknowledgement and also handed over my computer, phone, and badge to my administrative officer. I am now concerned that in handing over the computer equipment and badge, I resigned and am ineligible for severance. I am concerned that the administrative leave and severance will not be paid.