1 Pain that does not diminish with rest, and pain that may be worse at night than during the day. 2  Back pain along with constitutional symptoms, such as loss of appetite, unplanned weight loss, nausea, vomiting, or fever, chills or shakes.
Onions produce the chemical irritant known as syn-propanethial-S-oxide. It stimulates the eyes' lachrymal glands so they release tears. Scientists used to blame the enzyme allinase for the instability of substances in a cut onion.
Finally, there are the tears that set us apart from other animals -- the emotional ones. Whether itâs due to onions or a funeral, sometimes you find yourself tearing up more often than usual and you just don't know why. Here are five sneaky reasons you're crying all the time.1. You're tired. Babies aren't the only ones who cry when they're sleepy. Adults do it, too. You may suddenly find a cereal commercial bringing tears to your eyes. This abnormal blubbering could be a sign that you're not getting enough sleep.hether itâs due to onions or a funeral, sometimes you find yourself tearing up more often than usual and you just don't know why. Here are five sneaky reasons you're crying all the time. 1. You're tired. Babies aren't the only ones who cry when they're sleepy. Adults do it, too.