Stomach and esophagus

Inflammation of the stomach (gastritis): Pain in the thorax can be rather diffuse in the case of an inflammation of the stomach. They are usually located in the upper abdomen and have a stabbing character. If the inflammation bleeds, there is often vomiting of black gastric juice and dark stool.
(vomiting of coffee grounds and tar stools)
Heartburn (reflux) : In reflux the pain in the thorax is usually only minor. It is more likely to feel a burning sensation in the chest, which becomes stronger when eating and lying down. Often the pain is also in the neck.
This type of pain is sometimes indistinguishable from pain originating from the heart. The stomach acid flows back into the esophagus and damages it, which is sometimes accompanied by heartburn.
Organs outside the thorax, which are located in the abdominal cavity, can also cause thoracic pain; this is called projected pain. This is because spinal nerves that emerge from the spinal cord often supply an organ and a skin area at the same time. This projected pain in the chest is often triggered by the gallbladder or in the case of a stomach ulcer.

Muscles, bones and Co

Rib fracture or contusion: A fracture or contusion of the ribs results in respiratory, stabbing chest pain. The location of the pain is similar to the location of the contusion/break.
Tietze syndrome: Tietze syndrome also causes pain in the chest area. It is most likely caused by an inflammation in the rib cartilage.
They are stabbing and depend on breathing.
Shingles: Shingles is a very painful disease caused by herpes zoster viruses. The viruses travel along a nerve and also cause the typical vesicles that follow the nerve segment. The pain is usually described as burning.
Bekhterev: Bekhterev’s disease is a disease of the vertebrae and hurts especially in the early morning hours and at night. The thoracic pain is usually deep in the thoracic or lumbar vertebrae and is often described as dull.