Thanks for writing to health care magic.
After a physical examination X ray
spine may help to identify the exact cause of that neck problem you are having. Excessive sleepiness requires to investigated. Do you have a good night time sleep. Is there excessive snoring? Do you wake up frequently during night? Some times hypothyroidism
can cause such problems. A thyroid profile may be required to arrive at the exact cause of the problem.
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Hope this helps.