For the first time ever, I woke up in the middle of the night with the real feeling my face, neck, shoulders, arms and later thighs were on fire. The face was the worst, my lips checks felt puffed up. I felt I was going to burst into flames. Placed wet towels and ice, after twenty min and one advile. I began to feel it fade away and for first time could feel the overhead fan and airconditioner. Also felt nife like pain (like when your frozen and thaw out) needle like pricks in my legs. I am mid fifty's, good health, this scared me.