Am I suffering from depression?

Im feeling really low at the moment, The last 8 months have been awful. firstly i came out of a 2 yr relationship, I lost my cat, then my job, then my uncle died, then my bf of 6 months decided he doesn't wanna see me. Im really struggling to cope, i've tried to talk to my bf to sort things out, we've got back together but he said he's annoyed with me coz i don't wanna go out with him and his friends, he goes with out me more now than wot he used to i feel so left out im trying to make an effort but he thinks im not. i know I can be shy but i've lost all my self confidence, we seem to bicker abit lately and he says hurtful things. Everything thats happened has come as a shock and I really don't know what to do with myself, i've tried to talk to people but no one seems to understand, im hurting so much, i used to be happy and bubbly but now im really unhappy i can hardly talk to people anymore, i get upset so easily and i never used to. can anyone give me any advice? im only 24!Thanks