I have been suffering with symptoms on my lower legs and feet of "pins and needles" or "ant bites" feelings for about 3 months, lasting 24 hours per day. A neurologist tested for artery or vein blockages, etc., and for possible spinal nerve disorder, all to no avail. I had personally concluded these might be the result of medicines I had been taking for several years for asthma, COPD, and for tachycardia (anticholinergic medications), but doctors have found no specific cause at this time. I chose to change some of my meds to see if there were any improvement. Two days ago, the fronts of my lower legs now have an angry red rash covering the fronts of my shins with some spots lower on top of my foot and a few extending a little higher up my legs, with the left leg worse than the other and also more swollen than the right. The "rash" is totally under the skin, i.e. you cannot feel the rash when you rub across the skin. It does not itch but the skin feels warm. Can anyone tell me what this is? I have done as much research as I can on the internet and know there are several possible causes for the earlier symptoms and totally different ones for the "rash" condition. I am worried that something is going on that could cause me to lose my limbs if it is not treated properly. JC