We are sorry to hear of the difficulty you are having with
niddah.
From a medical perspective, it is strongly advised not to undergo a hysterectomy unless medically warranted. Halachically, it would not be permissible. We recommend speaking to your doctor about hormonal solutions for
extending your cycle (either
birth control pills or a
hormonal IUD). Having your period only 4 times a year (or less) could significantly relieve the pressure you are feeling from
niddah.
We also recommend sitting down with your husband to brainstorm ways to keep the emotional connection strong even when you are physically unable to connect. While a hug can be very powerful, so can consistent and frequent acts of giving, love, and communication that do not include physical touch.
Please feel free to get back to us with any further questions.
B’Hatzlacha!