Roughly chop celery, carrots and onion. Mince garlic if needed.
Slice chicken into 1 inch cubes and place to the side.
Sauté celery, carrots and onion in an oiled large pot for 5 minutes on medium heat. Then, add in garlic, salt, pepper and chicken. Cook until the chicken is browning.
Add in your chicken stock and turn the heat up on the pot to medium high. Cook for 5-7 minutes to heat broth properly.
Add mixture from pot into the crockpot along with 4 cups of water and thyme. Turn it on low for 6 hours. Note: if you have a crock pot liner, use it! It makes for an easy clean up!
After 6 hours of cooking, add in your noodles and curry powder. Cook for another 2 hours.