It could be hormones, but I say try and eat right, exercise, and see you doctor. It always helped me to watch my favorite movies and to try and get out an be social. Volunteering is a definite plus. But see your doctor and they can check you out as well. Good look and we all have back days.

I have learnt that depression is not just something that we have, and have to live with for the rest of our lives, like we have been told by many. There is a cause for everything and we must look at the causes to find the cure. PMS can definitely be a cause if it lasts only for a little while during that time, but there are other things to look at as well. I always scan for causes in three areas: mind, body and spirit. PMS would fall under "body" because it is hormonal. There are other things that can cause depression in this category, for example food intolerances, or something that we are eating that is causing an imbalance (or something we are lacking). We must eat foods that are natural and avoid foods that are refined or full of preservatives, flavourants, colourants, sugar, even chocolates can cause mood swings, because it spikes neurotransmitters in the brain, leading to a downer. Hypoglycemia (low blood sugar) can cause depression. If we eat sugar and refined foods this can cause low blood sugar after the spike, due to the insulin that is released. Do some research on that. We also need pure water for our brain cells to function properly, as well as exercise. The mind itself can also cause depression, if there are underlying issues that need to be resolved (e.g. relationship issues, stress, fear, self-esteem problems, loneliness, etc.). And then the spiritual aspects of life also need to be considered. We need to feel close to God to feel happy.