Hi, Thanks for using HCM.Bleeding after intercourse
or irregular bleeding , need to get PAP smear
done for cervical problem.
If bleeding was in urine, get urine routine test and ultrasound
of abdomen done, as you have low back ache, could be due to renal stones
Hope I answered your question. Consult your doctor for further examination and management.
Feel free to ask me if you have any further queries.
Wish you good health. Take care.