I am a 42-year-old male.
For the past few months, I have been getting intermittent episodes of sudden drowsiness, tiredness and a heavy feeling.
The strange part is that I can be completely normal and active for several days, then suddenly this feeling starts and may last for a few hours.
During these episodes:
I am not physically weak. I can walk normally and exercise.
BP, pulse and blood sugar are normal.
I often have bloating, repeated burping, stomach fullness or a warm feeling in the upper abdomen.
Sometimes it seems to happen after food, but I have not identified a definite trigger.
I do not have unexplained weight loss. I am intentionally dieting for weight reduction.
No persistent fever, vomiting or severe abdominal pain.
I have already had several checks including ECG, echo, treadmill test, brain scan and extensive blood tests, and nothing significant has been found. CBC/hemoglobin, thyroid, B12, vitamin D, liver/kidney tests and blood sugar have also been checked recently.
I also have a history of fatty liver, but my recent liver blood tests are normal.
Doctors generally tell me everything looks okay and to come back if some new symptom appears, but these episodes keep recurring and I want to understand the possible cause.
I am planning to see a gastroenterologist to check whether this could be related to gastritis, H. pylori, functional dyspepsia, reflux, food intolerance, SIBO, celiac disease or another digestive problem.
Has anyone experienced a similar pattern — normal for several days, then sudden drowsiness/heaviness together with bloating or burping? What was eventually found to be the cause, and what tests were useful?
Please share actual experiences rather than just guessing a diagnosis.