Feeling low, having crying spells, sleep and appetite disturbances, and difficulty in concentration and attention are some of the signs of Depression. Consult a Psychiatrist for a detailed assessment. It is likely with medication and counseling the symptoms will improve. If you are feeling suicidal or hopeless consult a Psychiatrist immediately.

I think you need a professional support to handle your emotions and to get a clarity in ha fling those situations. Do consult a psychologist.

U need to consult a Psychiatrist and get urself evaluated. Proper psychotherapy and counseling along with medicine will be very helpful in ur speedy recovery