Ive had abdominal pain since this morning starting in the lower abdomen now spread across the whole stomach with some back pain. painkillers dont he?

Some possibilities..: If one has very uncomfortable tummy pain, and is normally in good health, plus is not pregnant, the possibilities include: appendicitis (usually R lower quadrant), diverticulitis, kidney stone (very painful), constipation (crampy), stomach flu, etc... Most people with "moderate pain", more than mild pain, may need a doctor's evaluation to be sure it is not appendicitis, which would need surgery.

Need exam: The range of possibilities includes very serious conditions such as aortic aneurysm and bowel obstruction and at the other extreme, constipation. Please see a doctor for an evaluation.