Onslow's bloods are back and there is nothing of significance there, just a bit of dehydration. But at least it rules plenty out.
Onslow is much better than he was despite having no treatment. So we may just leave him be rather than keep putting him through more diagnostics. But at least we know what not to focus on if it happens again.
I honestly can't believe he is now hopping about when a few days ago he looked like he was taking his very last breath!