I get the blotchy skin too! I'm so glad I'm not the only one, although I'm sorry you have the same symptoms
It covers mainly my neck and upper body, but also goes on my face. It even happened when I was at the hospital about my heart problems last week and the Dr hadn't seen anything like it. They were giant red blotches and I felt so hot it was like I had my face in front of a heater. I don't have it constantly, but have had it happen quite often- first noticing it about 2 years ago.
So this is an RSD problem? Can anyone explain it?