Explaining how I know certain things, is almost impossible.
Since I have no clue how I know, I will say, The knowledge just appears in my head and it's no surprise when it comes true.

The headaches started a few days ago.
Not just any centralized headache, but a severe lightning bolt of pain on my right temple that lasts all of a few seconds. It's enough to bring anybody to their knees and have them wondering what the heck just happened.

The lightning bolts of pain has only happened 5 times in 3 days, with a combined total minutes of pain being right around 45 seconds.

The lightning bolts first hit me when I was at work.
I was in the middle of discussing the schematics of a project with my boss, when the lightning bolt pierced my right temple. I literally dropped to my knees. I've never had such intense pain in my life. My boss had jumped out of his chair and wasn't even within arms length when the pain was gone. I estimate the pain lasted 10 seconds. But 10 seconds was enough to make me feel weak when it was over with. My boss insisted I go to the doctor and to take the rest of the day off. I passed by a mirror, on my way out of the office, and my skin was pale.

Threw the looking glass I saw my friend Greg standing behind his old desk. I didn't want to turn my head so I just stared at him for a minute or so. He smiled and I turned around. There sat Greg's replacement. A girl by the name of Jenny, that was hired to fill Greg's place shortly after his death. Greg had a car wreck 2 years ago. He was killed instantly.

It didn't disturb me to see Greg. I've always been able to see things others can't.
What struck me as odd, was the fact that usually the only way I see spirits is almost by default.
I turn my head and see someone out of the corner of my eye, and then when I try and look again, the vision is gone. But what I do see in that half of a second glance, I can recall with clarity. I called the doctor and made an appointment for next week and went home and straight to bed.

The second time the lightning bolts hit me, it was the next day. Morning.I was waiting for a traffic light to turn green at a busy intersection. I was also flipping through the radio channels and boom. I thought I had been hit on my right temple. The pain lasted all of 5 seconds, maybe less. Again, It left me weak and trembling. I called in sick to work and went straight to my doctors office. The doctor worked me in. He ordered x-rays and a MRI. I spent a good amount of time in the doctors office that morning and kept hearing this woman calling her son's name. "Michael". Michael this and Michael that. I could have sworn Michael was a child. Upon leaving the doc's office, I casually mentioned to one of the nurses that maybe Michael needed some ritalin so he would mind his mother. I said it in a joking sort of way. and maybe louder than I should have.

The nurse gave me this odd look, like she didn't know what I was talking about, and then this 6 ft man joined me at the desk and said "I'm Michael and my mother has been dead for 10 years. I know you can't be talking about one of the other men in the room since there aren't any." and the lightning bolts of pain hit me again.

This time it lasted for all of about 15 seconds. Enough time for the nurse to call the doctor and run to my aid. The pain took me down to my knees and I couldnt even hear myself screaming. It was like a dead silence filled with excruciating pain. Again on my right temple.

I was released from the hospital this morning.
I'm not going to document the last 2 times the pain has hit.
They were pretty uneventful except for the severe pain and weakness that comes afterwards.
I've taken a few sick days off this next week just to recoup.
The doctor can't find any reason as to why I'm experiencing this lightening bolt of pain and my guess is, He won't know until I'm dead.

I came home today and took a nap.
In my dream i had a conversation with my aunt.
She died 20 some odd years ago from cancer.
She told me to get my affairs in order and not to go on my christmas Caribbean cruise, like me and some friends do every year. She told me this would be the last christmas I would have to be with my family so I better make the best of it. I woke up feeling unrested and tired. As if the 3 hour nap had done nothing for me.

I also know that the pain I've experienced is a aneurysm.
It's not something I have been told, from a spirit or otherwise.
It's just knowledge that's appeared in my brain from no where.

Now I have to sign off.
I'm expecting friends to come by for our ritual saturday night gab fest.
And none of them have a clue.
They don't even know I spent the night in the hospital and I'm not sure I'm going to confess the fact.
So much more is going on in my life besides this, but I have the strange feeling that the lightning bolt pains will become public knowledge before long, especially since the pain is unpredictable.