I have nipple discharge yet i stopped breastfeeding months ago. what does this mean?

Is it milk- like?: Possible causes for Galactorrhea include but are not limited to use of birth control pills, tricyclic antidepressants, antipsychotic meds, some sedatives,fennel, anise, fenugreek, some hypertension meds, Cocaine, Opioids,hypothyroidism, prolactinoma, renal dz, pregnancy, testosterone deficiency in men & significant breast stimulation.