yes homeopathy shows tremendous results in above mentioned complaints. As you are studying for a competitive examination, constant mental exertion and stress can trigger acidity- migraine and long hours sitting posture causes cervical spondylosis along with lack of physical exercises causing constipation.
Next Steps
required medicine and its dose can only be ascertained by a proper homoeopathic case taking. I would advise you to visit a homoeopath soon and get early treatment.
Health Tips
meanwhile eat healthy food, do some brisk exercise everyday and keep tabs on your mental health too during the time of this epidemic.