Sue,
I experienced panic attacks when I had put my back out, but didn't realise I had - I felt stiff, tired and wrong, but not particularly in pain. A friend recommended chiropractic treatment and the x-rays confirmed what the chiropracter could feel. I responded amazingly quickly to treatment. Now I recognise when it is out and get it treated asap, so no return of panic attacks.
As your daughter hasn't felt right since the third birth, it is possible her back was affected by it, so I think it is worth her getting it checked over. The Osteopathic Centre for Children recognise the damage to backs done by pregnancy and birth and treat antenatal and postnatal mothers. While they are unlikely to treat your daughter so long after the birth, they would certainly be able to advise her and point her in the direction of osteopaths in her part of the country with specialist training for children/mothers. Osteopaths carry out very similar manipulations to chiropracters on the spine and neck, but also cover other parts of the body.
It is very scary when you are already having panic attacks allowing someone you don't know to start manipulating your body. I think your daughter would find it reassuring if she was given help finding an osteopath in her area by this highly reputable organisation.
When I am feeling mega stressed my hands shake a lot: I wonder if your
daughter can identify a pattern around her hands starting to shake.
Others have sent excellent advice around nutrition, etc. and these are worth exploring too. After so long it may be there are several aspects of her health that need tackling.
Regards,
Fi
One does