Why do i pig out when im in my period?

Low seratonin levels: Your hormones, Estrogen and Progesterone drop just prior to your period. This, results in changes in brain chemistry. Your serotonin levels drop as well as a neurochemical called GABA. 'Pigging out' is, in reality, self-medicating in an attempt to increase serotonin and GABA levels. Chocolate can raise serotonin levels and some women crave it during this time as well. Best wishes!