Hello Friend, Good that you are seeking a help here. All your symptoms are sign of deep emotional disturbance like Anxiety may be due to over thinking about career or relationship or any sad incident. . In turn, this  disturbed mind will cause physical disturbance in your body like laziness, nervousness, digestion issue, lack of appetite etc. So you need to look at a holistic approach to solve the problem. You may need a guidance of psychology counselor to figure out the reason for your anxiety. Feel free to reach out to me online for further evaluation and recommendation.

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.

U need to consult a psychiatrist as well as psychologist as early as possible.