It hurts to breathe in but not when I pull my shoulders back? Its been like it for a month and getting worse

M.D. visit. The pain may be related to a number of conditions. If you are experiencing worsening pain, despite Ibuprofen to treat muscular strain, then a visit with your physician is recommended. They will access you for conditions such as asthma, aspiration, pneumonia and heart disease. Noting what makes the pain worse or better will be important information for your physician.