This is the type of vitamin D that circulates in the blood. Itâs considered a good reflection of how much vitamin D youâve absorbed from sun exposure and taken in from foods. Levels of vitamin D are expressed in nanomoles/liter (nmol/L) or nanograms/milliliter (ng/mL). According to the Office of Dietary Supplements (ODS), the results can indicate the following:
Other Health Conditions. On rare occasions, being tired after a meal or simply sleepy all the time could be a sign of another health problem. Diabetes, anemia, underactive thyroid, celiac disease, food intolerance, and sleep apnea can make post-meal drowsiness worse.
Feeling sick after eating is a sign that your intestines or digestive system are suffering from distress. Feeling sick after eating is typically an indication that you may vomit, though this is not always the case. This is a sign that your intestines or digestive system are suffering from distress.Certain medical conditions or bad habits can cause you to constantly feel nauseated after you eat, making it difficult to get the nutrition you need. Noting what you have eaten when the nausea occurs can help you narrow down this condition. 2  Improper eating-Eating too much too quickly or failing to chew your food thoroughly can cause you to become nauseated after you eat. 3  This may also cause indigestion or heartburn.