Doppelganger.

I don't know what happened to my son, but the kid who took his place looks just like him, walks like him, talks like him, stims like him, has the same quirks...everything is the exact same, except for a few details.

Case in point:

My son, you remember, the one who doesn't eat? He approached me a couple of nights ago, inquiring if dinner was ready. A bit taken aback, I told him not yet, but almost. His reply to me was "Okay, I'll set the table."

Erp?

So I ditched the paper plates (it was pizza night again), and set out real plates, silverware, glasses- the whole shebang.

Jaysen's doppelganger set the table.
Two nights in a row.

That night, I was in the kitchen cleaning up, when this mysterious child approached me again. "Excuse me, Mommy, can I please have some apple juice?"

"Sure you can." Right after I get the thermometer, Motrin, and an ice pack for you.
(Jaysen has always had pretty good manners, but it's the "excuse me, Mommy," that was shocking)

Another was a night I was out with a friend. Usually Jaysen has a difficult time going to bed if I'm not home- I usually find him asleep on the living room chair, or the couch. Companion told me that at about 9:15, he asked if he could go to bed.

This kid washes himself head to toe in the bath. He drank a glass of water. He not only accepted, but liked my new haircut. He shared with Rylan.

I don't know who this imposter is...but I'm wondering if he could stay just a little while longer?