Hi, Neller, and welcome! I have costochondritis and it is painful. Usually if you are having problems, the breast bone is tender if you push on it. The ribs hurt and go around to my back. My doctor has me take ibuprofen with food and that does help with the pain.
The pain between the shoulder blades is usually a symptom of fibromyalgia but you could have just pulled the muscle, too. You need to stretch those muscles. Try bending at the waist, letting your arms hang free and then start swinging your arms back and forth or in circles...any which way! That exercise stretches the muscles between your shoulder blades.
Be sure to check out the Fibro 101 thread...the second thread on the forum. There are links to good info about fibro including a list of symptoms and also gentle stretching exercises that really do work. You might see yourself in those symptoms.
I'm so glad you found us and joined in. Don't hesitate to ask questions because we are here to help you. I hope to hear more from you soon.
Post Edited (Sherrine) : 6/29/2009 3:53:00 PM (GMT-6)