When I was 20 I had a pyonidal cyst removed from my tailbone area and ever since I have had an odd feeling on my right outer lower thigh. When I touch it it feels as if I'm wearing some invisible piece of clothing over my skin. This has gone on pretty much all my life (I'm 75) and I suspect that a nerve was damaged during the operation. But starting a year or so I began having a sensation that my legs are wet and cold any time the temperature is below 70 degrees or so. I have mentioned this to most of my doctors and they mostly blame it on one or the other of the medications I take (I have melanoma, coronary heart disease and diabetes). It never occurred to me until I read something on-line that it could also be caused by degenerative spinal damage compressing the already damaged nerve. I will bring this up with my primary care doctor the next time I see her. By the way I did have a neurologist do a rather painful electrical test on my leg nerves and he told me afterwards that there was nothing wrong with the large nerves but that the sensations of temperature etc.are carried by the small nerves and there's no way to test them.