Im having my whole body(arms,fingers,legs,and back paining.)and when i went to dr,she say its kinda normal after periods for some girl.is she correct?

May be normal: It seems you have paining whole body as sign of some weakness , if you had heavy period and you feel tired and pain .It is good you have consulted your doctor as she said it is normal . Anyhow if your pains continue then see doctor.

Check it out: May need additional lab for B vitamins especially B6. Magnesium supplementation could help.