Yellow or greenish chest mucus is generally a symptom of infection and is often a sign that you should go to your doctor. Chest mucus that contains blood is often a symptom of a more serious infection such as pneumonia or TB, and large amounts of blood in the chest mucus should be seen as a medical emergency.
In California, your residency depends on how long you live in California, what ties you have to the state and local government and whether you are financially self-sufficient. You must be physically present in California for 366 days to become a state resident, except for brief absences such as vacations.
After becoming a legal resident, a foreign national must reside in the United States continuously for five years (or three years for spouses of American citizens). During that period, he or she must be physically present in the country for at least fifty percent of the time. This probationary period allows the foreign national to become fully acclimated to American life and systems so that he or she can fully participate in the national community upon becoming a citizen.