ON THIS PAGE: You will find out more about body changes and
other things that can signal a problem that may need medical
care. To see other pages in this guide, use the colored boxes on
the right side of your screen, or click “Next” at the bottom.
People with an islet cell tumor may experience the following
symptoms or signs. Sometimes, people with an islet cell tumor do
not show any of these symptoms. Or, these symptoms may be caused
by a medical condition that is not a tumor. If you are concerned
about a symptom or sign on this list, please talk with your
doctor. - Ulcers (from too much stomach acid) - Hypoglycemia,
which causes fatigue, nervousness and shakiness, dizziness or
light-headedness, seizures, and fainting episodes -
Hyperglycemia, which causes frequent urination, increased
thirst, and increased hunger - Rash that spreads on the face,
abdomen, or lower extremities - Watery diarrhea - Too little
potassium in the blood (can cause an irregular heartbeat, muscle
cramping and weakness, and decreased r