Hi. I was prescribed nucynta (50mg) three times a day by my neurologist for nerve pain in my foot a few months ago. When I called in a refill, I found out that the medication had to be ordered and would be available 3 days later in late afternoon. I thought I had enough for the weekend, but found out that I only had enough for Friday. On Monday when I went to the drug store to pick up the meds, I learned that an incorrect order had been shipped and all of it had to be returned. Another drug store had the meds, but I was exhausted and in pain, so did not have the energy to pick up the meds until the next morning. I was anxious, having hot flashes and sweating frequently. I have been taking the meds since yesterday and am still sweating, moody, and having hot flashes, oh and not sleeping thru the night. I wake up every 2 to 3 hours sweating profusely and am wondering if I am experiencing withdrawal symptoms and if so, when will they stop. I am sorry this so lengthy!