Kind of, but not exactly. They do that kind of thing sometimes on the Biggest Loser towards the finale - the contestants get stuff strapped to them in a backpack and have to do activities as a reminder of how much weight they've lost and how difficult these tasks used to be. However, unless you have an extremely strange body type, that weight that you lost was not all on your back.
It's a lot easier to get around when that extra 17 pounds is distributed around your whole body instead of just in a backpack on your back.
Either way, it is definitely a good reminder of how far you've come!! Kingkeld made a thread about this about a year ago, you should check it out and think about contributing a picture!"Lifting Lost Weight"
Someone who is busier than you is working out right now.
There will come a day when you can no longer do this. Today is not that day.