low bleeding during mensoration. pls advice

from last 5 months, i am noticing that my mensuration cycle is reducing. earlier it was 5 days now it has reduced to 2 days with low bleeding.

earlier i used to have heavy flow during those five day now both bleeding and days are reducing.

what can be the reason.


i ahve also noticed that most of the time i am into depression , getting emotionally week and not happy.

one week before the due date i start feeling irritated and depressed.

i am working and 26 years old not marraied yet. please suggest me some thing. or any test needs to be done.