Thank you for your query.
With all the symptoms , the most probable answer is due to a hormonal
change. First one must exclude the possibility of a pregnancy
, if not pregnant then other hormonal problems need to be examined I.e. poly cystic ovarian syndrome. The treatment will then be based on normalizing the hormonal cycle. The dizziness
may be due to blood loss, spasm of the smooth muscle
of the womb or tubes may cause your back pain
. Any sudden hormonal change may cause headache and breast tenderness. Please consult a doctor regarding the test for pregnancy and hormonal status. I trust this is helpful.