Exhausted and sore after a fall?

So I fell about two feet from the ground at work yesterday. But the way I fell, it was like a tree falling. My ankle caught on this pallet/boxed fixture thing I had been standing on and I just went over. While I did hear a popping or cracking (in the moment I was so frightened I don't actually know which it was) and my foot was initially numb, I don't think my ankle is broken. I could walk, it is no longer numb, there's no visible bruising and it doesn't hurt to the touch (only a constant mild uncomfortable ache and if I put pressure on it, it hurts fairly bad), I figure I've just sprained it. So while I would like input about that, that's not really the issue. What concerns me is, at the time of the accident, only my ankle and my bad knee (which got partially landed on in the fall) hurt. I worked the rest of the day with little problem aside from that, however, as soon as I got home, I started to hurt more and after waking up today, my whole body hurts and I'm exhausted. So exhausted I find it difficult to do much of anything, it's to the point of being frustrating. Under my arms and my side in particular are sore like I severely overdid a workout. So what I'm wondering is, is this normal, is it just the result of my muscles over-tensing during the fall, or did I possibly hurt myself much more than I realize? I'm usually a very careful person so this is the first time something like this has ever really happened to me and I don't really know what to expect.