Tired

I can't believe how tired I have been over the last 2 days. I wasn't this tired at the end of my nine-shift run last week. This morning and yesterday morning I really struggled to stay awake at work, though I found the afternoons a lot easier to cope with. I hope that my tiredness eases over the next few days. I am on nights from tomorrow and so I get a lay in the morning. Only four night shifts to go and then I get 2 days off again.