I concur with your expierience. when i was on ambien an atypical gaba a agonist the symptoms would cease while on the drug.
Surprisingly enough all organisms in your body are intamitley relating with it at all times, even viruses. i can provide with some searches multiple studies on pathogens totally modifing the host system.
and the brain and CNS is totally related with the immune system and the other organs.
the immune cells probably have gaba receptors as well.
also there is an antihelminthic that is a benzodiazapene derivative you can find it if you google