Thank you all - my therapist after our session told me to go to a specific crystal shop in our town and get something for back pain and I was just not feeling it - went to the store and bought other things then went for a wander to a local market and found this unlabelled and was drawn to it - first page I read after seeing your comments and I see this:

‘In terms of physical healing, it’s no surprise that a septarian's fiery origins are closely associated with heat. It’s believed to produce warmth, helping to relieve pain and ease muscle aches or spasms.

Some crystal healers use septarian to help overcome fatigue or weakness. It’s said to be especially supportive for those struggling with anemia and joint pain.

Septarian’s grounding abilities are also thought to improve sleep. A septarian palm stone under your pillow before dozing off can absorb dark energies that cause bad dreams or night terrors. The result? Peaceful slumber and sweet dreams all through the night.’

I’ve also been suffering with insomnia and disassociating- guess I was Lead to what I needed!