Mood change all of the sudden, is this normal?

[samsungxoxo]

Hi people,

Ok, I'm not sure if this's normal or I'm I getting the beginning of Bipolar disorder, but I know well I might be suffering from mood disorder and also slightly depression, though for no reason at all.

 

Thing is I have fun going out with my friends and also on a date. When I come home I'm happy, but like about 30 mins later or so, all of the sudden I drop right into a sorta melancholic state and I feel so empty. Somehow home gets me depressed and it feels like I'm a trapped birdie in a golden cage that I can't never get away from it and be free. Right now I'm at campus with a classmate and I'm nto depress anymore, I'm soooo happy.

 

And just about 4-5 hours ago, I end up crying at home for no reason.

 

And once in a while I start to break down all of the sudden for no apparent reason, even when I had just come home from hanging out or partying like crazy.