In Merles there are two colors of merles a blue merle which is a blue-gray color that is carried over through black and a red merle which is a dilute chocolate in the doodle breed, for some reason when produced in the doodle the red comes through as chocolate and really is a chocolate merle by color.
Chronic sinusitis, or sinus infections, cause a stuffy or runny nose, tooth pain, fever, sore throat and more. Migraines are a common type of headache that can cause severe pain, aura or flashes in vision, and tingling. Tension headaches, caused by muscle tension, are marked by pain, pressure and tightness around the head. Ocular migraine usually refers to a type of migraine that can cause temporary blindness in one eye.
Migraines and Vision Effects Symptoms. Migraine headaches typically occur on one side of the head and cause throbbing pain, but the features often vary. Migraineurs (people who get migraine headaches) often experience a bilateral event, meaning that the pain can be felt anywhere around the head or neck. Early symptoms are experienced by a majority of migraineurs.