I've been facing some pain anddiscomfort

Your symptoms of breast heaviness, pain, and discharge, especially at your age, are relatively common but should be assessed with care. Breast pain or tenderness can be due to hormonal changes, especially related to your menstrual cycle. However, the presence of a white discharge when squeezing the breast isn’t something to ignore, even though it can also sometimes be hormonal. In some cases, such discharge might be a result of prolactin hormone imbalances or other benign conditions. However, it’s essential to consider infections like mastitis, especially if you notice any redness, swelling, or warmth in the breast area. Although less common at 21, other potential causes include certain medications influencing your hormones or benign growths like fibroadenomas. You should refrain from squeezing your breast frequently, as this can cause more discharge. Right now, the best step is to schedule a visit with your healthcare provider. They can conduct a thorough physical examination and might recommend tests like an ultrasound or even blood tests to check your hormone levels. This will help in understanding the nature of the discharge and any underlying condition. If you experience any additional symptoms like fever, significant swelling, or if the discharge changes color, it’s crucial to seek medical attention promptly. Keep a track of your symptoms, note any patterns or changes, and avoid any over-the-counter treatments unless advised by a healthcare professional.