hi i had gone through your query and understand your concerns. i would come up with the possibility of UNDER ACTIVE THYROID-HYPOTHYROIDISM
may be the underlying cause for sufferings.
is one of the triggering factor for its development.
for thyroid profile shows increased TSH levels may confirm the diagnosis.
there is another possibility of PCOD;poly cystic ovarian diseaseultrasound
scanning for pelvis may confirm the diagnosis.
I hope this is helpful for you, thank you