I am having severe headache since last 18 months, and every part of my head is paining whether it is side part, back ,front or up .not only headache is the problem i feel sleepy all day even i had taken 2-3 hours sleep in afternoon then also i feel sleep within ½ an hour ,n every day i get sleeping attack ( as i am feeling sleepy n i don't sleep then unwillingly i fall in sleep ) and i dreams a lot i don't know why ? if i sleep only for 10 min then also i dreams, i cant concentrate on my study . sometime i feel my brain is vibrating or my brain's nerve is stenching  .please help !!!