A German Phrase for Asking how long someone has had symptoms: "Seit wann haben Sie die Beschwerden?"

"Seit wann haben Sie die Beschwerden?" means "How long have you had these symptoms?" and it's the basic German expression used for asking how long someone has had symptoms. It's very handy at hospitals and pharmacies. To answer, you can say something like "Seit drei Tagen." (For three days). You can keep the conversation going by reacting with something like "Verstehe. Ich untersuche Sie gleich." (I see. I'll examine you right away).