A sudden fall in postprandial (PP) blood
sugar, especially if you are not diabetic, could indicate reactive hypoglycemia or another underlying issue. Here's a breakdown:
Possible Causes:
1. Reactive Hypoglycemia
Occurs due to an exaggerated insulin response after meals.
Often seen in individuals with a history of gastric surgery or insulin sensitivity issues.
2. Prolonged Fasting
The fasting state might cause glycogen stores to deplete, leading to lower blood sugar after meals.
3. Imbalanced Meal Composition
A high carbohydrate or sugar-heavy breakfast can cause a rapid insulin spike followed by a sugar crash.
4. Endocrine Disorders
Conditions like adrenal insufficiency or hypothyroidism can disrupt glucose regulation.
5. Medications or Other Conditions
Certain medications or Gilbert syndrome (in your case) might indirectly influence glucose metabolism, although it's less common.
Recommendations:
1. Dietary Adjustments
Include more protein and complex carbohydrates in meals to stabilize blood sugar levels.
Avoid simple sugars and refined carbs.
2. Frequent Monitoring
Check blood sugar at regular intervals to observe patterns.
3. Clinical Evaluation
Consider checking for insulin levels, C-peptide, or an oral glucose tolerance test (OGTT) with insulin response.
Assess other endocrine functions if symptoms persist.
4. Stay Hydrated
Proper hydration helps in glucose regulation.
If this pattern continues or if you're experiencing symptoms like dizziness, sweating, or confusion, consult an endocrinologist for a detailed evaluation.