I have had a weird sensation going on for about a month. When I look up towards the sky I feel electric like jolts in my arms or legs. When I reach out with my arms and my head is bent back it happens as well. Sometimes it is both my arms or sometimes my legs. Tonight I threw an object up above my head while of course looking up and had an excruciating pain, jolt like electric and then both my arms from the elbow down thru my thumbs feel like my veins are popping and my inner forearm thru my thumbs cannot bear to be touched. Is this a pinched nerve? Is it a blood clot. It feels as tho I have something tied around both arms cutting off circulation. While sitting here, as I slowly move my head to look up, at a certain point I can feel a twinge run across both my shoulders. What would cause this. I cannot bear any presure on either of my thumbs or even bending them causes tremendous discomfort. Any ideas? I am considering the ER at the moment the pain is so bad. Please any info would be greatly appreciated. Literally my veins hurt in my wrist and the tops of my thumbs.