Hi, I am 28 yrs old female and experiencing headache since one month. I had undergone some tests like TFT,KFT,LFT , ENT , Diabetes and also shown to a neurologist but the reports are normal. The pain usually affects one nerve just behind the left ear or it affects at the lower head/ spreads to whole head, forehead and eyes. I am also experiencing whistle sound in the ear. Pain also affects my concentration. I had also taken Axoguard (SR) after doctor s prescription for 10 days but after around 15 days, the headache reappeared. It worsens when i go out in sun. May kindly suggest the cure ???