I am so tired

I went back to work yesterday.  It felt good to be back into my usual routine.  It was nice because so many people said so many nice things.  Honestly, though, I am so tired.  I went from barely doing anything for 19 days to going back to work full force.  My lifting restriction was lifted and I could do anything that I was able to do before surgery.  Thankfully I only work 8 hour days, but I work 5 days a week.  Forgive me for such a short post, but I think I will go to bed now and sleep so I have energy to work tomorrow.