I had my first sensory block last week (radial) - one shot into my forearm about 3inches from my wrist - this is the place where my arm has been swollen since last june after I injured it - within 3 hours of the injection my arm turned a deep purple/bluish color and was very cold and only would resolve when I elevated it -also the injection itself did not hurt, but right after I had pinching, burning pain up my entire arm to where my brachial plexus is approximately - and my opposite arm was tingling- nurse confirmed I was not hyperventilating - anyone have similar symptoms post having a sensory block - it has been a week and my arm if not elevated still is turning a darker red (but not as severe as after the injection) and is cold - talked to both neuro and anthesiologist and neither can explain - thanks