Poor you, Have my sympathy . I found the tiredness which came with Shingles worse than the really itchy spots or burning pain. Was wondering are you under a lot of stress through overdoing things, or very run down perhaps. Possibly not eating properly or looking after everyone else before yourself. Asking because the virus which lies dormant in a nerve ending normally re activates when your immune system is below par.
I've had shingles twice. The first time was when working a lot of hours on a high value contract project which had lots of problems to iron out, and the 2 nd time was when my mother was very ill , admitted to hospital and diagnosed with terminal stage cancer. And as well as working was charging back and forth between home, work and the hospital, so wasn't looking after myself properly.
Hope the anti vitals work well for you and prevent or at least lessen the effects of some of the symptoms. Keep in mind your body is fighting a virus , so have plenty of rest, don't overdo things, and keep an eye on your blood levels. Take care.