You asked:
I'm looking for a warming vibrator suitable for internal use to help with a tight pelvic floor and vaginismus. Can anyone recommend one that's effective but not too girthy?
Grace:
The Nu Sensuelle Chloe Nubii seems tailor-made for your needs!
It's a slim vibrator with a smaller girth, designed specifically for beginners or those suffering from vaginismus. Its heating function allows it to warm up before use, making insertion much easier. It also boasts several additional features that might be of interest too.