<s>[INST] I had a blood test taken 3days ago and it was the most painful blood test is ever had, I had a sharp needle pain in lower to where the blood was taken and a sharp shooting pain. I told the lady that took my blood but she insisted it didn t hurt :/ annoyed me. Now my arm feels numb and slightly tingly and I keep getting horrible twitches when I move my arm. ? Please help me ? [/INST] this is very unusual, obviously. The type of pain and 'shooting' imply a nerve is hit. THere are not major nerves in that area but certainly everywhere there are SOME nerves. With neuropathic pain:1) short run any nerve pill such as a lidocaine patch (you need ONE, cut into 2 cm squares, apply one 2x2 daily), anti-seizure med, or amitryptiline are likely to work at quite low cost2) long term minor nerves usually grow back ok.cannot say in your particular case. </s>