Hello . Reporting back from doctors visit this morning. Lovely, sympathetic woman trainee GP. Conferred with senior GP who was dubious due to normal blood tests. However, he agreed to try 15mg of presilone for 5 days. Unfortunately diagnosis will be compromised by my Xray showing fractured lumbar verebra. This may account for back and thigh pain but not the other symptoms in my hands and arms etc. Will just have to wait and see! Thank you and very good wishes to you all for your kind advice and friendly comments.