Well I'm older than you and I was heavy for about 15 years so it didn't exactly snap back into place like a bow string
but I was lucky in that I carried the weight spread evenly around my body so I don't have one or two massive problem areas.
The weight training helped a little in that the increased muscle mass helped fill it out a little but to be honest Arnie couldn't fill it properly these days LOL.
Again mate I've seen your pictures and your results are fantastic, you look great and have done a spectacular job. You should be very very proud of what you've achieved working the tool you've been given and you are an example to all here in what can be done IF you do your bit
Well done mate