I a 27 year old male and have been suffering from the exact same thing! Its been going on for 20 months now started all of a sudden as a burning back pain then moved down to my legs. I can't wear pants as I feel a 'Pins and needles' sensation and burning when I wear clothes!

How are you coping? Did you find a solution?

Welcome travellinbug.

This is an older thread, there are some more recent ones if you search "skin burning" or "sunburned feeling". It is not a rare neuropathy symptom but it is certainly an unpleasant one. Half of my wardrobe is geared around days when clothes literally hurt. I had this all over my body a few years ago, it was agony, but it eventually shrunk down to just my left thigh. it is uncomfortable but bearable.
This is not to minimize your discomfort, but you may get used to the "pins and needles" feeling. It is a constant for many of us. The burning and pain are more problematic and members here use a variety of medications and supplements to cope.
It is definitely harder to deal with all this as a young person. You are at a time of life when everyone expects you to be strong and healthy. Are you seeing a neurologist?