have you recently undergone CT scan
We are concerned about your headache.
and vomitings are classically seen in migraine
. many other rare causes can also cause this combination of symptoms.
Since your symptoms date back to long time, i guess you were already diagnosed with migraine.
Migraine attacks keep changing their presentation and occasionally low BP
may also be seen. my question is: have you recently undergone CT scan of brain?
IF YES, AND IT IS NORMAL, THERE IS NO REASON TO WORRY.
If no, i would suggest you get one, just to rule out cerebral conditions.
You may post your further queries. All the best.