I am to do stream of people a month, still did not come menstruation, yesterday collywobbles normal

This is an abnormal phenomenon, considering endocrine disorders, incomplete uterine involution, inflammation infection and other factors. You should immediately see a regular hospital for B ultrasound examination; if diagnosed pelvic effusion caused, should follow the doctor's advice to take antibiotics and other drugs. Pay attention to personal hygiene and drink plenty of hot water.