Can see my stomach moving, no pain, can be bubbles all over or like an oval rock rolling around in different areas. constipated, no period 6 mo. prser?

No menses: No menstrual period for 6 months raises the possibility of pregnancy and movements visible in your uterus can occur with pregnancy. Another possibility is vigorous peristaltic activity of your intestinal tract. This is often accompanied by gurgling sounds in the abdomen. If pregnancy is a possibility get a pregnancy test and get examined and advised for your constipation problem.

Abdominal movement: Birth control pills, Mirena IUD, depo?If so may not have period but still check HCG and transvaginal ultrasound (cysts) Also check prolactin/TSH . Stomach /GI has movement called perastalsis, that is how food moves to be digested & eliminated, if thin may be seeing that or bloating w/ constipation. Drink 2-3 liters/ day ;eat sweet potatoes, avocados, greens, carrrots. F/u/ w/ doc