!!!! When you say "squeaked" do you mean that your neck right up near your head, squeaked when you moved your head? That happens to me, too! I am currently researching melatonin because I have been having some really funky sypmtoms on and off for about ten years now...starting with really enlarged lymph nodes, which were removed and not cancerous, in about 2001. This was preceded by a weird attack of gigantous swelling of hands and feet with pain, and a red "cord-like" raised place down my left arm. At the time they suspected lupus but blood tests came back ok. Now, ten years later, I am always terribly fatigued and have gained ALOT of weight, and have had incidents of painful places at the base of neck, across shoulder and down arm, always on left side, which twice I have gone to ER ffor thinking it was heart attack, and they couldn't find any heart problem. However, the second time, the Dr. did snap to the fact that the 1/3 of a tennis ball sized lump at the base of my neck, and by extension the other painful points on my left side, were actually enlarged lymph nodes. I've been worried about lupus or cancer, but those hardly make sense considering all the circumstances of that first major bout and surgery ten years ago....Lately I have begun thinking it might be a major reaction to melatonin. After reading about Fibromyalgia and melatonin, I am now wondering whether I have a combination of the two causing these weird symptoms. Kimbers' msg above about her shooting pains from shoulders to elbows, etc, sounds similar to my experience. Any comments would be much appreciated, as this has me pretty much on the couch. And no health insurance.