So all day today I've had a sharp pain in my lower back. It's gotten to the point where bending down hurts and is unbearable 😫 I've taken pain medicine for it but it comes back after a few hours. Once the back pain comes again, my shoulders and entire back hurt too. It can't be from a workout or exercise because I haven't worked out since Sunday and it would've hurt the next day. I never have gotten a backache before starting my period. I don't remember having back pain like this. Anyone else experienced sharp lower back pain? If so, what was the cause?