My son is one years old and is now on 2% milk and.was throwing up chunks of it this morning. why is that? could it be from the lyphonod *spell check

Unlikely: If there only has been one episode of vomiting, i would not blame the milk. 2% milk is what toddlers are normally started on. I would observe him for awhile and see what occurs.

The Gland: If it hss not changed in size, is soft, nontender to touch, and moves around when you touch it, it is usually benign. But to be safe, check with your doctor.

Lymph node worry?: Does your child have an enlarged lymph node that concerns you? How long has it been there? Where is it? How big is it? Is the tissue swollen around it? Is it red? Does it hurt the child when it's touched? These are the questions you may wish to bring up with your pediatrician when you take the baby to have the lymph node evaluated.