Hi, Angelina, and welcome! I'm so glad you found us and joined in. Fibromyalgia is considered a rheumatic illness like Lupus, it seems, but I do wonder about it being auto immune, too. I have several auto immune illnesses so that makes me wonder. The doctors are still working on this and trying to figure out what is causing this illness. Some say it isn't an inflammatory illness but yet ibuprofen helped me so much for years and that usually is the first line of defense for the illness. Go figure!
Here is a link about rheumatic illnesses from the National Institutes of Health.
http://www.niams.nih.gov/Health_Info/Arthritis/arthritis_rheumatic_qa.asp#c
Be sure to read Fibro 101...the second thread on the forum. There are links to good info about fibro and you will learn a lot there. Good starting links are called Symptoms, What Else Could It Be, and A Thorough Explanation of Fibromyalgia. You just might see yourself there.
Try to stay warm! Cold makes me pretty miserable, too, and I live in Florida! If it gets in the 50's and 60's I hurt more so I do feel sorry that you are going through the cold. I lived up north most of my life so I do know what you are talking about. Brrrr
I'm looking forward to getting to know you better. Don't hesitate to ask questions because we are here to help you. Hope to hear more from you soon.
Sherrine