One of the many things that can really knock you down if you're not careful. Rest and re-hydrate if you hope to recover. It's known to have laid low many travelers.
Causes
Can be caused by drinking Alcohol.
Cure
Cured by time (~0,8 hours). If it cured, you will get 40 Fatigue points and 15 Thirst point back.
Effects
Your Fatigue is reduced by 40 points and Thirst is reduced by 15 points.