Hello, i am a neurologist and thanks for posting this question in this web site I want to make you understand that a given medical symptom in elderly can have mutiple cause for example calf pain of elderly. It can be becuase of neurological as well as because of poor blood ciculation or can be due to both in a single individual. Further, in elderly, there can be multiple medical problems which are mostly age related. Let us go back to your proble. You have dizziness and spinning which got worse with lying down position. As you donot have any other neurological symptoms like double vision, loss of sensation in face, tremors of hands or imbalance while walking, the most likely possibility would be BPPV(BENIGN PAROXYSMAL POSITIONAL VERTIGO). It is due to presence of some stones in the semicircular cannals of ear. The treatment of this condition is brandtdarroff exercise. You need not be on medicine for this problem as there is no definite evidence that any sedative medicine, commonly prescribed will really help. Back to the second part if the problem, neck pain. The most common cause of neck pain in your age is cervical spondylosis. Before the treatment of the condition begins, a neurphysician must see if you have a neurological defict related to this. If it is so, then a MRI cervical spine should be done to find out the exact nature of any compression of spinal nerves if any. If there is no neurological deficits after examination, then you can be treated medically or else surgery for cervical disc is another option. I generally donot recommed surgery for my patients those who have pain alone, how ever if the pain get worse with treatment after 6 weeks, i generally rediscuss with my patients. If there is a deficit on examination and MRI shows nerve compression you need to have surgery Hope this clarifies Best regards