you should still see your doctor or go to the ER for a neck xray and brain CT scan to check for fractures and bleeding and trauma from the fall
sometimes a bleed in the brain can be slow to develop and can develop after a week.
or you could have pulled a muscle in your neck or strained your neck
it can be hard to tell over the internet without being able to examine you and run some tests.
let me know if you have other questions.
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you can always reach me directly with "a question for Dr. David" in the medicine or oncology categories if you have other questions
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