I figured this would be a good place to ask, since it seems most people at ups start as a package handler. I've been doing the job for about a month now. I've tried to ask some of my coworkers but didn't really get the answer I was looking for. What I want to know, is it normal for my back to be feeling weak at the end of each day? It feels like holding all these heavy packages is compressing my spine down. I feel it all up and down my spine. It doesn't necessarily hurt but it doesn't feel like it's good either. I am definitely exhibiting proper lifting, that's not the problem. I I think the problem is holding heavy things for 5 hours every day. Will this ever go away? Or am I just going to have to live with it?