So, I'm on the blood thinner xarelto after dvt and pe about 6 weeks ago. Today I go in for a blood draw and the nurse jabs me in my hand but fails to get the blood. Needless to say I left. But for the past few hours I've had tingling in that specific left hand and it actually had began twitching. Should I be worried about another blood clot in my left hand now? Absolutely terrified.