I am 22 years old girl and i do not have periods also i am obese?

Amenorrhea: Look into turners syndrome with your doctor. Other congenital causes may also be a cause. Also have him check for major depression, hypothyroidism or pituitary disorders.Also kalliman's syndrome rarely.

See yout doctor: You didn't say whether you;d ever had a period or not. If if it's a recent symptom it may be related to your weight, especially if you gained or lost a lot recently, you may also have poly cystic ovarian syndrome(pcos) if you never had a period, then there are many conditions that need to ruled out by an md, you might want to consider a pregnancy test as well.