“Why did the cookie go to the doctor?”/“Because he was feeling crummy!”

Cookies have crumbs. A classic cookie joke (cited since at least 1993) is:
 
“Why did the cookie go to the doctor/hospital? Because he felt crummy!
 
   
Google Books
See Saw
By Anthony John
New York, NY: Jove Books
1993
Pg. 244:
“I’ll tell you a joke,” she said. “Why did the cookie go to the doctor?” She paused for two seconds, then said, “Give up? Because he felt crummy!”
 
16 June 1995, Daily News-Record (Harrisonburg, VA), “Kids’ Home Newspaper,” TV Week, pg. 15, col. 1:
WHY DID THE COOKIE GO TO THE DOCTOR’S OFFICE?
BECAUSE HE FELT CRUMMY!
PUP THANKS RYAN HINKLEY OF SPRINGFIELD, MA
 
21 November 1996, Cedar Rapids (IA) Gazette, pg. 2Y, col. 5:
Why did the cookie go to the doctor?
He felt crummy.
—Daniel Gargauna
   
Google Books
August 1997, Boys’ Life, “Think & Grin,” pg. 57, col. 2:
Sandy: Why did the cookie go to the doctor?
Randy: Why?
Sandy: He was feeling crummy.
— Shaun Weyer, Tyrone, Pa.
 
Google News Archive
24 July 1998, Lawrence (KS) Journal-World, “Laugh it up: Child’s sense of humor says a lot about who they are” by Richard Chin (Knight Ridder News Service), pg. 8D, col. 2:
Why did the cookie cry?
Either because it felt crummy, or because its mother had been a wafer so long.
 
18 December 1998, Aberdeen (SD) American News, Farm Forum, pg. 56F, col. 3:
“Why did the Christmas cookie go to the doctor?”
“He was feeling crummy!”
 
Google Books
The Mammoth Book of Really Silly Jokes
Edited by Geoff Tibballs
London: Constable & Roinson Ltd.
2011
Pg. 109:
Why did the cookie go to the doctor?
Because it felt crummy.
 
Google Books
Jokelopedia, Third Edition:
The Biggest, Best, Silliest, Dumbest Joke Book Ever!
By Eva Blank, Alison Benjamin, Rosanne Green, Ilana Weitzman and Lisa Sparks
New York, NY: Workman Publishing Company, Inc.
2013
Pg. ?:
Why did the cookie go to the hospital?
Because it felt crummy.