Hello Friend, Good that you are seeking a help here. Mentioned problem are symptoms of distrubed mind. You may be over thinking or worried about exams, career, relationships etc. This imbalance will also influence your body functioning like dullness, lethargic, over sleeplessness, sudden weight loss or gain etc. Better to fix this immediately. You may need some counselling support to assess your suitation and get recommendations. Consult me online or reach out to any psychology counselor locally.