Thank you in advance! possible causes fluttering/twitching in abdomen and pelvis? periodic pain lower right side of naval and lower right pelvis. not pregnant. urinate frequent at night, strong odor. periods have become very heavy. thank you?

You need test: Twitching or fluttering off and on in the lower abdomen is usually not serious if not constant or not affecting your daily life. Constipation sometimes causes those symptoms. If symptoms are constant and bothering, you need to have at least a urinalysis. Examination is very important, further testing such as ultrasound or CT scan may be necessary after the exam.