Morning nausea can happen due to various reasons beyond pregnancy. Common causes include:
- Low blood sugar after fasting overnight, especially if you missed dinner or breakfast.
- Acid reflux or gastroesophageal reflux disease (GERD), where stomach acid irritates the esophagus during sleep.
- Stress or anxiety, which can trigger nausea through the gut-brain connection, especially with morning cortisol spikes.
- Sleep issues like poor sleep quality or disrupted circadian rhythms affecting digestion.
- Inner ear problems causing dizziness and nausea.
- Postnasal drip or sinus congestion irritating the stomach.
- Effects of alcohol consumption leading to dehydration and stomach irritation.
- Food poisoning or an upset stomach from something eaten the previous night.
- Gastroparesis, a condition where stomach emptying is delayed.
- Other digestive issues like peptic ulcers or constipation.
If morning nausea persists or is severe, seeking medical advice is recommended to identify underlying conditions and receive proper treatment.

