Sudden frequent Severe headache on left part of head resulting the swelling of face on left part. The pain so severe that even the jaws and ears start to pain. The pain is initiated with feeling of pain on the particular nerve. This pain starts from forehead and felt till neck. Some times even vomit is felt. I do use specs for long distance and I was having cervical 4 years back. I had done all my blood test which is normal except HB at 11.4.even TSH is also normal. I have  cesearian kid of 1.5 yrs. The normal pain killers such as crocin also is ineffective. Post headache stroke the head feels heavy. This headach occurrence can be any time. Please advise to whom to visit and what are the causes of this problem