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As you have such problems like breast tenderness and pain in peripheral area from neck and arm.
Also you had removed uterus
before 5 years, in this condition this is a menopausal time and thus in menopause
time such complication like these can be seen in such cases.
As per the sonogram and blood test
there is nothing to worry, so its clear that there is not nay illness or significant sign of any major diseases.
Now its advisable to wait and watch till it will sub-site and if needed you can take s.o.s. medicines like painkiller and other with doctor guidance.
Dr. Nikul Patel