Hi..Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern... Mumps is usually suspected after parotid swelling and other infectious causes of parotitis should be considered such as HIV, coxsackievirus, and influenza. Initial signs and symptoms often include fever, muscle pain, headache, and feeling tired. Mumps can be confirmed by isolating the virus on a swab of the parotid gland duct. Testing for antibodies in the blood is simple and can be falsely negative in those who have been immunized. So you might still have mumps As your 2nd query,high lymphocytes percentage and low neutrophils percentage indicate a viral infection which might be mumps Hope this information helps. Get well soon