out of shape

You could almost set your watch by it. If I start gardening at the top of the hour, it's almost exactly the top of the next hour when I start getting dizzy and decide to call it quits for the day.

Every winter is more sedentary than the summers in Minnesota, but this last winter was mild, so I don't really have a good excuse for how much faster I lost stamina this year than usual. I'll keep it at. I've never cared to be buff, but I do like to be moderately fit. Right now, I'm not that.