What Causes Constant Headaches,ear Ache And Dizziness?

last week i had a severe headache that felt like knives stabbing me in my head it lasted for two days i took all kinds of medicine excedrine tension headache benydryl advil alieve allertec singular and naproxen to try and help it but it didnt go away finally on the second day i tried amytrypiline and darvocet it alleviated some of the pain but it didnt fully go away for a week i still had a headache but it was a dull achy pain last night the sharp stabbing pain came back with neck pain and ear ache and dizziness it has lasted all day on and off and about 20 minutes ago i noticed a rash on both elbows little red spots