I have intermittent flashing light in my left eye. Always in the same spot. Spot is always the same shape (like an upside down checkmark and it is light green.) sometimes I feel light headed but this does not occur at the same time as the flashers. Sometimes , recently, I have had a mild, dull headache on the top and back of my head. I am a 71 year old male, in good health. I am taking ramipril 10mg for blood pressure. I also experience significant stiffness in my neck. Rolling my head causes pain in my neck.