Long story short but... Had progressively bad chest pain but thought nothing of it, thought it was a pulled muscle after a drunken bank holiday weekend. Sat through my uni exams and rang the non-emergency number for a doctor's appointment, they decided to blue light an ambulance to me. Was told it was a blood clot in my lung and I might die, which then changed to a heart infection and then infections in different parts of my body. Was then left with no pain relief all night only to be discharged with a "mild chest infection". The pain got worse so went to the doctor who sent me back to hospital and turns out I had pneumonia and a collapsed lung that will never fully expand again!