If there is pain in the middle of the chest when stretching, it is likely that the pain is superficial, such as intercostal neuritis, when stretching, due to excessive movement, which can lead to strain and cause pain symptoms, this condition is generally due to cold fatigue and caused by aseptic inflammation, can be treated by local heat physiotherapy, or the use of non-steroidal anti-inflammatory drugs such as Fotarine. If you have pain in the middle of the chest when stretching, you also need to rule out the possibility of pleural adhesions, you can clarify it through fluoroscopy and other examinations, if this situation exists, most of them are caused by lung infection, you need to actively anti-infection treatment for the primary cause, such as the use of cephalosporin antibiotics.