7/31 Hit the 24/24 wall

All over Pham Nu Lao there are "24/24" signs which, I am almost certain, translate to 24/7.  This morning I think I hit the 24/24 wall.  I was sick, tired and almost cried when someone asked me how I was.  I will give it until Wednesday to see if I get better.  If I don't, I will have to give up one of my classes;(.