Why is my right breast lump and delayed period?

A throbbing or stabbing sensation in the chest can be triggered at the age of 22 by a variety of issues, such as hormonal transformations, trauma, disease, or particular drugs. Hormonal shifts around the menstrual cycle can cause one or both nipples to hurt. If you are experiencing pain along with other symptoms like redness, swelling, or discharge, see a healthcare professional immediately. 

Nipple pain can result from different causes including fluctuating hormone levels, infection, or skin diseases. Pay close attention to the following if you notice that your breasts are swollen, changing their color, or have a discharge. All these symptoms may need some more checking. If you feel that it is just a minor one and it does not affect you that much, you could simply wear a well-fitted bra and have a warm compress on. Moreover, staying clean by regularly taking baths and changing your undergarments is crucial. Regardless, if the pain continues to ache or become more intense, it is strongly advised to see a healthcare professional. 

According to the tests, there’s no evidence of any major problem such as cancer in either breast, which is fantastic news. The tiny calcification found in the left breast could have resulted from an old infection or inflammation. Currently, there’s no cause for alarm but it’s essential to have another checkup next year to be safe. In case you observe any unusual changes in your breasts before then, please let your doctor know.

I see that you are concerned about the severe pain in your right breast and the shrinking that you are experiencing. These symptoms might be because of cancer, among other reasons. A physical exam and imaging tests, such as mammography or ultrasonography, are essential to identify the root cause exactly. Such checks will aid your doctor in setting the path for the procedures you will have to undertake.

Unilateral breast pain or the heavier side of the breast, when you press in this particular, can be caused by mastitis. Mastitis describes a situation where a milk duct becomes blocked or infected. Further symptoms may involve feeling hot, red, or swollen in the same area. It's crucial to see a healthcare provider who can make the correct diagnosis and treatment. They might give you antibiotics, or do compressions to reduce the pain and swelling with the last alternative. Self-care measures can be an adjunct to medical treatment, thus it should be a priority to seek guidance from a professional in healthcare.