I've been having some numbness in my right leg lately. Sometimes it feels weak when I walk. Tonight it has been giving me some extra sensations, it goes in waves, from tingling, to numb, to a weird tickling feeling. The "tickle" I compare to getting your reflexes checked, like when the Dr. taps under the knee cap and it just kinda tickles for that second. Except this sensation can last for hours. It can be so awkward and uncomfortable that it can make me nauseous. Also it feels cold from the inside.