 [ Symptoms ] vomiting no period not pregnant since i lost wright for 3 years ago i didnt have period eversince today i am 162 cm and 42 kg also i have stomach pain and vomit at least once in a month what could it be [ Disease ] it would be impossible to determine a specific cause of monthly bouts of vomitingstomach pain and lack of menstruation for three years blindly over the internet you will need to see a gynecologist for a thorough medical history and examination there are multiple possibilities and they cannot be sorted out by this forum