I’ve pulled a muscle before ... It typically manifests in the upper chest (think under your collar bone but above your nipples), and the sharp pain it causes tends to worsen with deep breaths ...

A third visit saw her diagnosed with a pulled muscle in her chest. When the pain didn't improve, she visited the doctor for a fourth time, and reminded the GP about the inflammation in her thymus ...

A heart attack is a serious medical emergency, so it's vital for you to recognise the common symptoms to act swiftly and avoid serious health complications.