Answers:
There are multiple conditions that include headache and tremors and I don`t know even the loss of memory. People are individuals, and don't fit into a unique disease. If this is a friend of yours, be long-suffering, steer him or her to a physician fitting for the age group. Stress can also produce these symptoms. If the doctor doesn't refer a supportive specialist, consider that a Psychiatrist could be a biddable place to start. (There is also a possiblity that this entity know what is wrong, but cannot share near you.)
maybe senile and parkinson