What exactly can trigger an outbreak? Stress? Sickness? Random? Just curious.

Yes to all of the above :)

Mine was stress for sure.

27 F I have had shingles twice June 05, June 06 2nd round has made all other areas not related to the rash to have crazy sensations now my feet hurt hands legs. But my shingles both times were on my back. The 2nd time there wasn't a rash. I am waiting to find ot what it is. Anyone experiencing these same symptoms? All my blood work is clear and my immune system shows healthy.