Some people get caught up on silly questions. Many people, when they first heard of our bodies being transfigured into our immortal bodies have wondered if that was going to be painful.
The question should just be answered without judgement.
I’m not worried.
We probably have an endless procession of ‘immortal bodies’ ahead of us.
And, whatever happens at the moment of death (and I personally believe that it’s probably engineered to be quite merciful):
What sense does it make to be worried about something that is inevitable?
Just LIVE! Just live as fully as you can, with as much love and exuberance and curiosity that you can!
I think that’s why God put us here, and that’s what He expects out of us.