This isn't normal :(?

I know it's gona sound weird but why have I been SO upset lately? Like everythng I do or anythng that happens makes me wana cry :( I'm nvr hungry anymore n I'm not as social as I used to be. My participation grade in most of my cles is really low...I duno if it's stess or what? N I can't sleep at night n whenever I'm alone, or even with someone I'm always like this close to crying. sometimes I don't even want to get out of bed anymore :( I'm almways sad! I hate this feeling pls help me