I am the Queen of Mood Swings. They are such a nightmare. I can wake up with awful anxiety and waves of dread sweeping over me. Then I spend the day feeling really jittery, like I HAVE to keep busy or something dreadful will happen, and I'm scared to be alone. Then in the time it takes to drink a cup of tea I can feel my mood lifting and the anxiety fade away. Then I can feel great for the next 24 hours, or even the next 2 weeks. But the depression and acid anxiety always comes back.
And the really cruel thing is that when I'm 'bad' I am convinced I will never feel 'good' again, even though I keep a mood diary so can see in black & white that I HAVE been this down 100 times before and ALWAYS improve again. But the low mood and anxiety are so severe that they stop me being able to think objectively or logically.