Hello Friend, Good that you are seeking a help here. Looks like you are having some emotional disturbance like Anxiety which is affecting your mental health. May be you are overthinking about something about future, career or relationship. It causes sleeplessness, nervousness, lack of interest, body pain, palpitations etc. No worries, it's just like any other physical illness and can be treated through counseling session and few lifestyle changes or therapy. Feel free to reach out to me online for further evaluation and recommendation.