I experience lower back pain just above my bum in the middle part. usually around my period. it hurts especially when leaning forward or bending. ?

Fairly common : Symptoms of disc type back issue that can be treated with a regular exercise regimen of core strengthening exercises and stretching such as yoga along with cardio routines with avoidance of tobacco while keeping trim and getting a good night's sleep. Over the counter medication such as Ibuprophen around your period may be helpful as well if no allergies or stomach issues with this medication.