Abdominal Pains And What They Could Mean
Constant and Dull Abdominal Ache - Ovarian Cysts

Although a constant, dull abdominal pain could be caused by a number of factors, ovarian cysts are one of the most probable. Ovarian cysts are simply fluid-filled sacs that form inside one’s ovaries. In many cases, these cysts are symptom-free - until they are large enough to cause discomfort.
It is also possible for large cysts to push on your bowel or bladder, resulting in a constant ache. Since these cysts can rupture or cause your Fallopian tubes to twist, it’s important to have any associated pain checked by your physician. That way, you eliminate more serious possibilities, such as cancer.
Abdominal Cramps - Food Poisoning

Food poisoning is the result of eating food that is either toxic, contaminated, or spoiled. Although food poisoning generally will not cause much pain, it may cause symptoms such as bloating, abdominal cramps, diarrhea, nausea, vomiting, loss of appetite, weakness, headaches, and a mild fever. If the food poisoning progresses, it may cause dehydration, severe abdominal pain, a fever over 102 degrees Fahrenheit, muscle weakness, difficulty seeing and speaking, blood in urine or diarrhea, and jaundice. If severe symptoms arise, contact a doctor immediately.