Nothing about her address changed while you were away, and that is exactly why her unsettled behaviour can feel puzzling. From her side, the household ran on a substitute rhythm: a sitter arrived at slightly different times, food came from different hands, the house sat empty and silent for stretches she is not used to, and the evening lap she expects simply never appeared. Cats anchor their confidence to sequence and timing far more than to objects, so the routine she lost was real even though she never left home.
Put the Original Anchors Back, in Order
Resist the urge to compensate with novelty. What reassures her is the old pattern returning intact, so rebuild the day in the sequence she knows: the same first feed at the same hour, in the same bowl, in the same spot; the litter tray back on its usual cleaning rhythm; the play session where it always sits in the evening; and you settling in the chair she expects you to occupy. Unpack promptly, because suitcases in the hallway keep the smell and signal of departure in the house, and return any furniture, blankets or feeding stations the sitter moved to their original places.
Keep the first two or three days deliberately plain. Postpone visitors, DIY, rearranged rooms and the introduction of anything new she must assess. Each ordinary day that unfolds exactly as predicted is evidence, in her terms, that the interruption has ended. If she follows you from room to room, treat it as information rather than a problem to correct, and let normal proximity do the reassuring.
Read Distance and Clinginess Honestly
Post-separation behaviour runs in two directions and both are normal. Some cats are pointedly cool: they keep a room's width away, decline the usual head rub and act as though you have been demoted, then quietly resume affection over several evenings. Others become unusually clingy, sleeping pressed against you, waking you at night and calling when a door closes. Neither response needs fixing, and switching between them within a day is common. Respond to the cat in front of you: offer contact, accept refusal without pursuing her, and never punish the distance as sulking.
What deserves attention is function, not mood. Track whether she is eating her normal amount, drinking, using the litter tray and moving around the house across the day. A cat who skips a first meal after the excitement of your return is different from one who is still refusing food, hiding without emerging or straining in the tray; those are signs to call her vet promptly rather than wait out a settling period. Likewise, sudden aggression or vocal changes in an older cat should be reported, not filed under readjustment.
Make the Next Absence Less of a Break
The kindest lesson from this trip is about the next one. Brief the sitter to imitate your routine, not merely to complete tasks: same feeding order, same play timing, same lights left on overnight, and a visit length that includes sitting quietly in the house rather than a feed-and-leave dash. A sitter who follows written times closely gives her days that feel familiar even in your absence, which shortens the rebuild when you return. Ask for brief updates during the trip too, noting appetite and litter use, because knowing she ate, drank and settled each day lets you come home without bracing for a problem you cannot see.
A steadier handover next time comes from giving that sitter, via KinsLe, a time-limited Care Pass covering feeding times, play order and litter checks for your absence only.