Hello Friend, Good that you are seeking a help. Your symptoms are sign of anxiety. You may be thinking too much about exams or careers or relationships related issues.. When mind is overloaded with such thoughts it exhibits migraine, body pain, palpitations, sleeplessness, constipation etc.
Suggest you to consult a psychology expert to discuss your issues in detail. You can find suitable solution like home remedies, lifestyle changes, dietary or Self therapies or exercise to overcome.
Next Steps
Feel free to reach out to me online through Practo app for further detailed evaluation and suitable solutions that you can follow practically to overcome this problem. Be positive. You will be alright soon.