Just that really!
So many people I know seem to have jobs that are mentally very tiring and difficult (desk based) but that involve very little physical activity. I totally get it is still very much possible to be exhausted after a stressful and hard day even though you don't have to move much but sometimes it feels like I'm the only one that is SO physically worn out by the end of the day.
Had a very long and busy day today. Really hard work, lots of effort involved lifting and carrying heavy things, lots of walking and was on my feet the whole day. Feel so, so depleted now, I have absolutely nothing left in the tank. Please tell me I'm not the only one and there are other people out there who work like this too?!