7 days ago, I took my last norco for back pain. A few hours later, I realized I had become addicted so I ceased use and went through withdrawals. The worst is over, but I am still trying to regain normal energy. However yesterday, I pinched a nerve that sent searing pain from my shoulder to my fingertips. I first mistook it for a heart attack. My question is, is it "safe" for me to take a half to relieve this pain, or will this cause me to start withdrawals all over again?