ok this is completely hypothetical

but what if someone was randomly being sick or feeling like they wanted to be

thought it was a tummy bug but it's gone on for like 3 or 4 weeks

they have been bulimic in teenage/early uni years on a more or less regular basic, then still use those tricks when wanna lose a bit of weight rapidly

but this time not deliberately purging, it's just coming up anyway esp if it's 'bad' food

also pretty stressed with work

can the current throwing up be like a reflexive throwing up even though it's not consciously purging (they might happen to be happy with the weight it's made them lose recently)

there is no physical anything going on, no sore tummy or anything

any thoughts would be useful