Germs is probably the answer
In the intestines, many of which are in the colon.
A. usually accompanied by dull pain
Hamstring strains are
accompanied by sudden and severe pain during exercise they may possible
include a snapping or popping feeling.
Hopefully this should help you
http://gcc.glendale.edu/fire/Documents/ClassMaterials/Ropes/Ropes-VFA08.pdf
Knots start on page 35
plz thank me, it motivates me to answer more of your questions :)
