I ve been sick for 3 weeks. About two weeks ago I went to my dr. I was coughing lost my voice. He give me an antibiotic shot and I asked for a b 12 shot which he give. I just started getting or feeling a little better but, I ve been having dull pain around my collarbone to about 2 are so to the being of my breast the last two days. My dr office won t reopen tell Monday. Is there something to be worried about?