As I write this, I am also having a bad day myself. It was so bad that I fell into depression.The next thing that you're going to ask is, "Why? What happened?" I wish I can answer that. That's the thing with depression; you never know when it will hit you. It sneaks up on you, and when you realized, it's already too late. I have never admitted this but today I am going to face it straight on. For those who are in the medical field, I have bipolar disorder type II, and for my laymen readers, I have a mood disorder. You can say that what I have is a mental illness but, let me stop you there; I am definitely NOT crazy. This is the stigma that I have been trying to avoid. Mental illnesses are almost always associated with psychosis. Psychosis is when you have delusions or hallucinations that caused you to behave differently than the normal person would, So what I have is actually more to what you call as an 'unstable mood'.
Just a Muslim revert trying her best.