Headache/neckache and a whoosh whoosh noise in my right ear, my heartbeat I believe. Is this serious?

Pulsatile tinnitus. Definitely seek further evaluation. Pulsatile ringing in your ear might be due to an abnormality of your blood vessels that might put you at risk for a hemorrhage.
How . How intense is the pain on a scale of 1-10? Is this the first time you have experienced this? Do you have a history of migraines or inner ear problems? History of high blood pressure? If your symptoms have not resolved by now you definitely need a medical evaluation/work up. Best of luck.