Hello and welcome,
A lump the size of a tennis ball is quiet big. It may be an infected lymph
node. The green discharge from the breast may also be due to infection. A rare possibility is breast cancer
The cough suggests the same. However the symptoms are too vague to give you a proper diagnosis without examination. So I suggest that you get an examination by a doctor and also get the green fluid tested under a microscope. An x ray
chest anbd a hemoglobin
test will also be helpful in determining the cause of shortness of breath
With these a correct diagnosis can be made and you will be alright after treatment.
Hope this satisfies your query.
Thanks for using HCM.
Feel free to ask any more questions that you may have.
Dr Madhuri Bagde
Consultant Obstetrician and Gynecologist