I think if it's teething, it would be more obvious, with baby crying and being fussy. My niece refused food for a while and she would throw a tantrum or fuss; we later found out that she started teething. Maybe baby is just distracted? It could also be a growth spurt. As long as baby is eating (even if it's by the spoon) and not losing weight or feeling sick, nothing to be too alarmed about, I reckon.
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