It sounds to me like, when you were moving, all the crud in the bottom of the water heater tank was stirred up, and then you used a lot of hot water right away, which probably moved some of the debris into the check valve of the water heater outlet, and now no water can get through it. It might need to be removed and cleaned out, along with removing the anode and cleaning out the crud from the tank, something that should be done yearly, along with checking the anode. This is probably what the check valve looks like:
https://www.trekwood.com/products/14...-2Mpt-x-1-2Mpt