Why is that you some time feel real weak and your blood sugar low but when get tested for problem they find nothing?

I want to emphasize that I'm not a medical professional, and medical questions or concerns should always be addressed by a qualified healthcare provider. However, I can provide some general information that might help you understand why you might experience low blood sugar (hypoglycemia) but receive normal test results.

1. Testing Timing: It's possible that your blood sugar drops at times other than when you've been tested. Blood sugar levels can fluctuate throughout the day, so if your test is performed when your levels are normal, it may not capture an episode of hypoglycemia.

2. Postprandial Hypoglycemia: This refers to low blood sugar that occurs after eating. In some cases, people with diabetes or insulin resistance may experience a sudden drop in blood sugar levels several hours after a meal. This type of hypoglycemia may not be detected if testing is done before or during the post-meal period.

3. Medications: Certain medications, such as insulin or diabetes medications, can cause low blood sugar as a side effect. However, if your doses are well-managed and your blood sugar is well-controlled, your tests might not show hypoglycemia during regular check-ups.

4. Testing Accuracy: In rare cases, blood sugar testing devices or techniques might not be entirely accurate. If you have concerns about the reliability of your tests or suspect that your blood sugar levels are not accurately measured, discuss it with your healthcare provider.

5. Other Underlying Conditions: Occasionally, low blood sugar symptoms might be caused by other medical conditions that aren't directly related to blood sugar levels. These could include conditions affecting your adrenal glands, liver, or kidneys, as well as hormonal imbalances.

It's always important to consult with a medical professional if you're experiencing recurrent episodes of weakness or low blood sugar, even if your tests don't indicate any issues at the time of testing. Your doctor can assess your overall health, review your medical history, and recommend further tests or interventions if needed.