when I was doing a quick organized to bring down all the heavy magazines and books
from the top level of the bookshelf to the floor,
few times ups and downs....
finally I hurt my waist, and getting painful for a week.
feeling pain when lying on the bed;
feeling pain when trying to wear the pant;
feeling pain when bending my knee to have a nail polishing
feeling pain when laughing;
getting a little bit better for a short of time,
and again the pain returns yesterday....
today I walk quite slow just like an old woman -_-"