Yesterday!!! all my troubles seemed so far away.

Actually yesterday wasn't responsible for the whole problem, part of the blame has to lay with the day before yesterday. That's the day we went to the beach,that's the day we played rounders on the beach, a nice piece of beach with a gradient, not flat. This was the day that I didn't even consider stretching out after rounders, why would you, it's only play. That was the day before yesterday.
Now, yesterday, I did my duty at eleven o,clock and gave a pint of my finest blood to the Welsh blood service, had my cup of coffee and free biscuit and went on my way.
Around 5.30 yesterday I went for my run and the previous 24 hours began to reap their rewards. After the first 500 meters my calves felt like they were being pulled away from legs with meat hooks, every step hurt more than the last, I thought, if I just push on it will ease as it quite often does after the initial warm up period, but it didn't.
As I pushed myself on my exertion levels rose, the more exerted I became the more my body wanted to shut down and go to sleep. I pressed on for 2 miles before the head stared to spin and the legs screamed STOP!
I stretched out a little on a telegraph pole and turned round back for home, walking with some little jogs,
The problem with the legs was obvious from the start, the day at the beach. The light headed drowsyness took a bit more figuring out, then it hit me, giving blood, of course. It takes longer than you think for your body to re-set its self and restore all the relevant levels of oxygen and blood cells. What a complex species we are. Going out on the bike today, lets see how it goes.