I would recommend seeing a doctor ASAP and try to think of things that may have changed for you in the past couple weeks including diet, sleep habits, injuries, starting or stopping smoking, stress level, new pet or other potential allergens, etc. Let your doctor know about any of these changes. I hope you feel better soon.
You are young, and have headaches for the past 2 wks. The only thing you can do now is to take Paracetamol or Ibuprofen tablets as pain killer medicines.
You have to be seen by a doctor if the pain persists, this is to know if something is wrong and if something should be done about it.
You will be fine.
Best,
Thomas Antony