Constant mental pressure, stress,anxiety, depression etc are may be the cause for ur headache.
Try to control these problems and solve each and every.If u dont do it alone then u can take external help and consult psychologist online or offline for help and learn how to cope up those situations.
Next Steps
take-
1)Glonoin 6 -3 drops thrice a day for 4 days.
2)Kali Phos -200X-4 tab thrice a day for 3 weeks.
Report me after 3 weeks.