Here's a shortcut version:
Heat canola oil in stock pot and sauté onions until they just begin to turn golden brown. Add chicken pieces and saute until it is nicely browned.
Add 8 cups water and bay leaf. Let it simmer for 20 - 30 minutes, skimming the surface as needed. Remove chicken pieces and let them cool until you are able to handle them.
Add celery and carrots to broth. While they are simmering, take the meat off the bones and cut into bite sized pieces. Add the chicken meat back into the soup and add noodles. Cook another 6 - 8 minutes until noodles are done.
Here's an even QUICKER version: Buy stock at the store and a rotisserie chicken. Pull the meat from the chicken and add it to the soup at the very end, just to warm it through. Super speedy, which is what you need if you're feeling under the weather.