Hi, I m a 22 y/o female. Basically, I ve been feeling down and moody for the past few months. Apart from that, I seem to lost my appetite from time to time. I used to sleep around 5-6hours a day, but now, I feel tired easily and I have trouble waking up early. My hair drops a lot to the extent that my sister complains about it. What can be wrong? :( Thank you for answering!