There are several types of depression and different ways it starts. If you are going through a tough time in life it can cause depression, like loss of a job, someone close to you passed away, etc..Have you noticed any changes lately before the depression hit. Talk to you doctor about depression and what you are feeling. I hope you get the help you need. God bless!
It depends. You my have a chemical imbalance, or you may simply be down. Talk to your doctor about both possibilities.