hi ! tightness in breast is due to hormonal changes that has started when you were
pregnant, though you have been aborted some mild changes still remain and trouble. need not worry about it. consult a good gynaecologist in ur vicinty and get checked, if needed go for medication for a period of time, you will be ok. or else you can consult a good homoeopath nearby and go for medication for couple of weeks you can be cured.