pneumonia
"I had been to hospital with some pretty bad pneumonia. They were in the process of discharging me when the nurse gave me the shot. Let me be clear I have NEVER EVER felt such a painful shot in my life. Holy cow it felt like I had broken my arm and I couldn’t move it for at least 30 minutes after. Nurse said to rub it out and luckily it didn’t hurt too bad the next day."