Phthisiologist is an obsolete term for specialist in tuberculosis. You should call a doctor, if you have:
Symptoms (such as a cough that may produce bloody mucus along with fever, fatigue, and weight loss) that could be caused by tuberculosis (TB).
Been in close contact with someone who has untreated active TB, which can be spread to others, or you have had lengthy close contact with someone you think has untreated active TB.
Blurred vision or changes in how you see colors and are taking ethambutol for TB.
Yellowing of your skin and the whites of your eyes (jaundice) or you have abdominal pain and you are taking isoniazid or other medicines for TB.