Depression. He is extremely supportive!

I don't know something is wrong with me. I feel like crying all the time. Even in a group of people I feel terribly low. I can't stand people. I am happy with very less people around me. I've had a couple of fleeting thoughts. I cry for no reason. I know I am being annoying. I know. I know when I sit I do realise, I am being a pessimist. My fears are killing me. And I don't need sympathy. I've been crying days and nights so much there are no tears left. I am just taking in a pool of negativities . Overwhelming waves of sadness with no knowledge as to where they come from. I hold on to my mother, I question my parents, my best friend my fiance,whether I am important to them .! I push my fiance away. I fight with him and I leave myself alone. I have no control over my emotions. Even though he is extremely supportive