For the last few days ive had a horrible pain in my left shoulder, more like my collarbone, clavicle. Its so sore and at times sharp. I had a huge panic attack last night because the pain was so bad and I thought it was heart related. I do however have bad health anxiety. I'm inclined to think it's muscular just because it hurts more on movement. I had something similar in exactly the same place last year and I was referred for an MRI... I'm still waiting. It calmed down but now it's back. I'm not expecting anyone to diagnose me, I'd just like to know if you have had anything similar and what it was or of you can relate also for reassurance or hay its not my heart! No other symptoms except my huge panic attacks last night! (Not new for me, I do suffer badly)