Still tired

Have not slept well since last week. Saturday night I was awake from 2-3:30 or so, and this morning woke up at 5 and couldn't relax enough to get back to sleep. My stomach was upset from the early wakeup, which didn't help. Came in to work early since I was already up. Hopefully good sleep is in my near future, I've always suffered if I don't get a good nights sleep, much less 4-5 in a row. I can't think of any particular reason for the bad sleep, the work stress of last week was resolved, the re-tiling is done, etc. Only thing remaining is my persistent shoulder injury.