Hi I was weeding in my garden today and I when I grabbed a weed I feel a sharp pain in the palm of my left hand, as if I was stabbed by a thorn. I thought this was the case, but when I looked at my hand there was no puncture, only a very tiny barb. I pulled it out with the use of tweezers, but shortly there after I can no longer feel my left hand, but it is still fully functional. It is also tingling and extremely numb. Any idea what I grabbed or what I can do to regain the feeling my left hand?