Hi- You certainly need to know more.
First, If I were you, I would rule out that your brain is not under any stress from a neuro disease.
To be sure, without seeming completely NUTS- tell a neurological specialist that you have had severe head pain, and hear noise during the bouts of severe pain. Also, vision changes as far as color. You should get a MRI or CAT. If anything is obviously wrong they will find it.
IF it is clear and you are healthy, then write to Sylvia Browne.
I think she could be your best bet for info on your issue. She has books out about picking up on stuff like what you are experiencing now. Might want to find a book on that. You could be one of a few or the only of your case. Keep us posted :-)