The American Cancer Society issued new recommendations in October 2015 about mammography, stating that most girls must start yearly mammograms at age 45, and at age 55 begin getting mammograms every other year. Tell your doctor. It may possibly be arthritis, based on what kind of discomfort. To relieve it, take Tylenol and when it really is greater, exercise it typically, but do it ... be soft, rubbery and a bit tender, and ache far more after drinking alcohol. Dr Amanda Sferruzzi-Perri, University of Cambridge, Materno-fetal resource allocation altering placental endocrine function by IGF2.