This patient support community is for discussions relating to the challenges of parenting
toddlers (age 1-5), including physical, speech, sensory, cognitive and emotional development, choosing a daycare/nanny, games & activities, and toilet training.
Could be but more likely your son is "stressed out" over school. I might suggest you google the phrase "school refusal" or "anxiety behaviors in young children" or similar words/phrases to see if anxiety and/or stress might be the issue. Just wondering ....