This can be considered as hormonal imbalance or even low iron in the blood. Check your hormonal levels and iron in the blood, spend a lot of time on the sunshine and fresh air, eat healthy food, some vitamins and minerals, royal jelly and your mood will very much change...naturally. Sunshine and fresh air do miracles when someone is moody or depressed - they improve secretion of all needed hormones.
WOmen are much more sensitive on any hormonal change then men. In addition, you are not the only one in relationship, so maybe is something "rotten" in relationship as well.
What you are describing does sound like depression however, you need to be seen by a doctor in order for that diagnosis to be made. As the brain is part of the body, start with your regular family physician or generalist. He or she may decide to send you to a specialist for various testing and this may include a psychiatrist.
When you call to schedule your appointment with your primary doctor, explain to the receptionist that you may need a little more time with the doctor, more than the usual 15 minutes. Good luck to you and I hope you feel better.
To add to writer268's reply, it does sound like depression, but without knowing other factors such as physical illness, economic situation, relationship details, it may not be depression as a disorder. For people, even with diagnosed chronic or clinical unipolar depression, often you're depressed because you have something to be depressed about, sometimes you just haven't figured out why. If it's psychiatric, there's treatment.
If it's psychological, there's therapy. If it's environmental, there's changes to make. It gets better.
Stay healthy, be safe, be well.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.