Hi Seems like depression Whatever it is.. It's curable seek help Consult with me or any psychologist for therapy and counseling All the best

Hello Friend, Good that you are seeking a help here. All the mentioned symptoms are showing the sign of deep Anxiety. It may be due to over thinking about one particular past issues or worrying about future with fear and insecurity. With such preoccupied mind, obviously you will notice negative behavior and stress in day-to-day life. As body and mind are interlinked, such negative emotions can affect the physical health too by causing headaches, body pain, nervousness, sleeplessness, constipation, lack of appetite etc. So having seen all these disturbance affecting your normal life, why don't you take the next logical step to address it. Be positive, you can overcome this problems with a  counselling help along with few self therapies, lifestyle changes, dietary changes, excersise etc. You can call me directly or online through Practo app for further detailed evaluation and recommendation of suitable solution.

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 feel you are Confused between various reasons. Could also be that, you feel unhappy about yourself or about something else in life... I suggest you to consult a psychologist either online or offline for more clarity and understanding.