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.
In other words, in order to petition a state for name change, you must be a permanent resident of that state. All states require a Petitioner/Applicant to be a resident of the state -- often for at least six months and sometimes for as long as one year -- before filing for a name change there. Someone who files for a name change, typically, must offer proof that (s)he has resided there for the required length of time.