welcome to health care magic,
From your symptoms it seems that you are having signs of Pre manopausal syndrome.
Still after few years you will go to Manopause
During these years you feel hot flashes,will give sense of depression,unnecessary worries,vague complains like body ache,lithargy,withdrawn etc.
During this time your period becomes irregular,scanty or more.
During this period chances of pregnancy
If you become nervous you may attend manopause clinic and seek advise.