Fully fit?

Having fought off a cold and reflected on the last few days, I realise that I must be fairly near to being back to full fitness; I spent yesterday moving heavy flagstones and taking large amounts of rubble to the municipal dump, where I unloaded it and threw it away all by myself. I do still get quite tired, but nothing like as badly as before surgery. Indeed, although I keep saying this, I haven't been so energetic for many years. I even walked to and from the village three times on Friday last week; excessive, I know, but easier than driving and trying to find somewhere to park! Now that's something I thought I'd never catch myself saying...