Thanks for the query.
After removal of uterus and ovaries it will take some time for the body to get adjust for hormonal
Your HRT will possibly help in this.
You once consult gynecologist and go for one ultrasound
to find out any possible cause for your problem.
Once check for thyroid profile.
etc. as much as possible.
Regular exercises, calcium supplemenation can help to some extent.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429