Hi, Anna, and welcome! I get heart palpatations and I have also had some chest pain that turned out to be muscular. When this started for me, even though I do have fibromyalgia, I saw my doctor. He did the electrocardiogram, an echocardiogram, an ultrasound of my heart, and had me wear a monitor for 24 hours. My heart was fine. I know it is frightening, but now I KNOW that it's fibro.
Anxiety is also an issue with fibromyalgia. But most of us have pain and fatigue. The pain seems to be in many of our backs, shoulders, and necks.
Be sure to check out the Fibro 101 thread....the first thread on the forum. There are links to good information about fibromyalgia, including a list of symptoms. This might help you and you just might see yourself there!
I'm glad you found us and joined in. Read back posts. There is a world of information in them. Also, don't hesitate to ask questions. We are here to help you. I hope to hear more from you soon.
Sherrine