I sometimes get a cold burning sensation in my back. this time, it's in my upper left arm as well. what can cause this? i usually can deal with it until it stops, but it's more intense this time?

Do you experience a cold.or hot sensation even though your skin temperature is not hot or cold when you touch it? I have seen patients whose sensations at times were cold &hot at other times These were cases of peripheral neuropathy involving the feet,however. Your situation may be caused by neuropathy involving more superficial nerves. I recommend checking for vitamin B12 deficiency & diabetes.