I ended up in A&E too, for the first time in my illness. Someone sent me a link to an american chiro who linked adhesive capusulitis to viral infection - pointing out how odd it was that people often went on to experience it in one shoulder then the other. Who knows. Underlying inflamatory proceses could well alter calcium use by the body. I'm interested to hear from anyone else who has had this and who had the steroid injections?