Coming off of Secondary Amenorrhea

Hi! I'm 20 years old and I've had secondary amenhorrea on and off for a little over a year. After 5 months of no period I gained ~3 pounds and have been getting my period regularly for the past 3 cycles. However, I have been experiencing intense symptoms including excessive hunger/cravings, water retention, and most troubling, severe depression and self-loathing for 2 weeks prior to my period and during my period. I am not normally a depressed person and I generally eat a very healthy balanced diet. Has anyone who came off of secondary amenhorrea experienced something similar? I saw a gynecologist when my periods were not coming regularly and he said my hormones were  where they should be. I am not on birth control.  Thank you!