I am and older woman about 5ft 8in, 136 lbs with normally good health but the back of my head keeps getting hot and sometimes the top of my head as well but no Doctor seems to have an answer. It has been ongoing for about four years. I have had blood tests, cat scans, MRIs and nothing was found. I have also seen a dermatologist who looked into sweating such as my hands or underarms which had actually not been a problem. I have also seen a neurologist and three general practitioners all to no avail. Any advice you can provide will be very greatfully received. Thank you,