It could be a heart attack.
It is a dull heavy sound.
Never Dull works well with some elbow grease.
Sex
Roman/Latin for "heavy, slow" also possibly "dull"
Pertaining to, affected with, or resembling, lethargy; morbidly drowsy; dull; heavy.
yes
Big blankets of dull clouds, that can give drizzle but not heavy rains.
O2 (oxygen).
A dull knife rips the skin, while a sharp knife (think scalpel) slices smoothly. A dull knife would be by far more painful.
what causes you to have pain below your left hip
leaden adjective - dull, heavy, or slow. of the colour of lead; dull grey. On leaden feet he made his way to the gallows. The weather was at its worst; bitterly cold, with leaden skies. His arms felt leaden from the heavy case he clutched.
it comes in contact with air