Unexplained Headache

Hello everyone. I have been suffering for a head ache for more than a month. I call it a head ache because it's more like my head aches than it is a headache. The ache is in the back of my head and is very dull. It is not pulsating or vice like. I have had a CT and a MRI, both negative. I am very discouraged as I do not know what is causing my headache. OTC medicines do not bring me relief. Has anyone experienced this type of ache?

Do you have any other symptoms? Sensitive to light? Nausea? Any pain or pressure behind your eyes? Is the pain constant? Sorry for all the questions but the brain is a marvelous organ but so very, very complicated!

I have the same thing. It started in october. I recall the day. 2 days later I noticed a tick bite. Unsure if related. 5 months of HA have not gone away. I wake up with them, 6 out of 10. tylenol, Advil no help. MRI MRA negative (no contrast). LP negative. Lyme screening was negative. Blood work negative so far. Very annoying.