I am experiencing left neck pain while turning head left & a spinning sensation. I also staggered after waking this morning. Could this be a stroke?

If a stroke. You need immediate medical attention - this is FAST F-face drooping- ask person to smile and see if one side is drooping A-arm weakness ask person to raise both arms S-speech slurring T- time to call 911 Also given the symptoms you are describing needs followup with a physician.
Maybe not. A number of things can cause this from migraine to benign positional vertigo. As a a general rule, it the symptoms are new, severe, and concerning, then please seek evaluation.