In my opinion it is not because of hysterectomy... I think it is because of some other reason or it can be a generalised lower back pain... kindly go for few blood test
calciumvitamin d vitamin b 12 and
uric acid...go for few sessions of physiotherapy... get well soon take care
Next Steps
Consult a physiotherapist immediately
Health Tips
Hot fermentation is a must
Kindly take corrective postures