Post Pregnancy - Periods and its Effects

Hi All,
I gave birth to my DD(Vaginal Birth) in May 2012, had heavy bleeding for 8 weeks after delivery. I was breastfeeding her till she was 14 months, my periods returned in Jan 2012, very heavy flow(need to change pads every 3 hours). What bothers me most is my mood swings during those 5 days.I have really terrible mood swings, last month i was very depressed and lonely for no reason, and started yelling on my DD. And later i started crying, i live alone with my daughter(my husband works in a different city) and i was extremely scared of myself.
Looking back now, iam very ashamed of myself, consumed with guilt about how i yelled at my DD. I also had undergone an episode of domestic abuse with my inlaws(recovered from it, put it behind and bounced back now) But sometimes, i get reminded of the domestic abuse and it triggers a depression in me.
Any homeremedies or tips to fight the mood swings?
Regards,
Padmalatha.K