Worrying or stimming? Looking at an overactive mind from a neurdodivergent point of view

From what I can tell, neurodiverse criteria for getting a good night's sleep can be very different to "norm"...and we may not be as anxious as we seem, measured by usual criteria. So how can we tell when we are worrying compared to when just NEED to stimulate ourselves awake in the middle of the night (and why might that be)?

No sleep (a middle aged female angle)

Middle of the night thinking-aloud about the links between insomnia, autism, oxalates, vulvodynia and interstitial cystitis, chronic pain, environmental sensitivities, low to borderline thiamine B1 levels and feeling like you want to jump out of your skin!