I've had minor allergies for most of my life & progressive allergies for about 8yrs. Many of my symptoms are "sub clinical" & even the Allergists have dismissed me as a chronic complainer when I describe my symptoms. My most recent issue is that if I take pain Tylenol or Benedryl I get chills & a weird, creepy-crawling feeling inside of my lower back. I asked the Dr. to check my kidneys but an ultra-sound looked normal. I'm now going to look into liver stress thanks to your article. I can't believe the Dr.s didn't make the connection at the time of my visit!