Hello, These symptoms are suggestive of depression. Depression can affect anyone and you can overcome it completely. Depression symptoms include feeling low all the time, loss of interest in previous pleasurable activity, crying spells, feeling lonely, change in appetite and sleep, low in energy, confidence, hopeless, helpless, worthless feeling and sometime even suicidal ideas. Few of them or all can be present at a time. Depending on the severity your treatment will be decided. Symptoms worsens with time so its advisable to take help from mental health professionals as early as possible.

Hello Friend, Good that you are seeking a help here. Such lack of energy, long sleep are symptoms of stress and anxiety in your mind. As body and mind are interlinked any such overwhelming thoughts about future, exam, career etc would inturn create imbalance into your physical condition. Be positive. You can overcome this by adopting certain changes in your  lifestyle, dietary, few self therapies, excersise along with a counseling session.

Hi This must be really disappointing to you. I want to know if you have got a body check up done specially thyroid I need to ask you more questions to conclude what's the exact problem in order to provide effective treatment. Take the next step consult with me or any psychologist for therapy and counseling You have exam seek help don't risk it All the best :)

Please check your vitamin level. Thanks