YES. This is part of the reason I decided to go forward with quitting my job and switching to school full time. I just couldn’t take the overload anymore (and trust me, it wasn’t as bad as yours!).
It was getting to the point were I couldn’t force myself to deal with any of my personal messages, etc. because I was already strapped from so many work things that I HAD to respond to.
I just turned in my VMW badge yesterday – I’m finally not working part time anymore. I’m going to try to get my stuff under control. Good luck, hon, doing the same for yourself. Definitely allow yourself to take breaks – you need them!