I have exactly what you are describing except it's mostly my left eye. My pain is really bad though, like an ice pick and it blinds me momentarily and I can't move. I have the same thing as you when you say you lay down and feel pain, but mine is a pressure pain and hurts where my head is making contact with the pillow. I am post-cuncussive, a minor head injury that occured in December. The ice-pick/eye symptoms occured immidiately after my injury and continue after two months...still happening. The pressure when I lie down is new. Also I am getting more and more "triggers" for my eye pain. I get it when I laugh, talk loud, cough, nod, get bumped or turn my head. I get it every time I try to see myself in my rear-view mirror - I am learning NOT to do that. Old habit. They did a CT and found nothing and a spinal x-ray and found nothing. So I got diagnosed as post-cuncussive with whip-lash. Whatever that means...I think it's a fancy-shmancy way to say "uh, we don't know." I am going back to the Dr soon though. Hopefully they'll look harder.
What were your symptoms? I have had bad headaches for as long as I can remember and got an MRI about two years ago while experiencing particularly bad ones. The MRI came back normal. These pains are fairly new to me and fairly recent, thats why I am a little worried. Like I said, they have yet to be really painful. Did you get your problem sorted out. I really hope so.
I am not a dr. Just another patient on here, you need to go and get this checked out bya neurologist or dr. I had this come on very very suddenly and while sometimes people get migraines etc head aches i never had either, and they found spots on my brain. I am not saying you have this ..do to the dr. Peace