Sickness after drinking wine can have various causes, just like most other symptoms. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose sickness after drinking wine, we could:
Do you become more sick after drinking wine than after other alcoholic beverages?
Possible responses:→ No / I don't drink wine / don't know
→ Mildly, but I'm usually fine
→ Severely - I can't tolerate wine at all