3. Burning Sensation
Nerves carry all sorts of information. That means they’re not just there to let you know when you’ve been hurt, but also how much weight you are lifting, how fast the leg is moving, what is brushing against the surface of your skin and etc.
This means it shouldn’t really come as a surprise to learn that your leg can experience a variety of other sensations too, depending on how the signal is being scrambled.
Unfortunately, this can go as far as to cause a constant burning sensation as though you were having an allergic reaction. This is quite unpleasant as you can imagine and can be very uncomfortable.