In a large pan add chicken and 2 chicken bouillon cubes. Add water until the chicken is submerged and cover and boil for 45 minutes to 1 hour.In the meantime chop your onion and celery. You can also chop the baby carrots if you want them small but I personally think the size is just fine. Combine all ingredients into a bowl and set aside.Remove chicken from pan and place into a bowl to allow cooling to room temperature.Fill your slow cooker or crock-pot with water until it is â…” of the way full. Bring to a boil (use your hottest setting until it reaches a boil).Once your water is boiling, place 2-3 chicken bouillon cubes into the water and allow them to dissolve.Shred the cooked chicken (you can use your hands or a fork and knife). You can also cut the chicken into cubes if you prefer.Place the chicken and vegetables into the boiling water and reduce heat. Slow cook on low for 4-6 hours or on high for 2-3 hours.Place your pasta into your slow cooker for the last 20-30 minutes and allow the pasta to become tender.Serve with a side of crackers or my favorite, Hawaiian Sweet Rolls.