So sorry you've lost your cat
Do follow all the tips at the top of the list of threads, call late at night in case she's trapped in anywhere if you've not already done so.
I presume she's been spayed? and can you stroke her?
Yes, she's been spayed and hubby and I can stroke and cuddles her but when she's outside the home she is very much her own woman and nobody else would be able to fuss her other than ourselves!
I've walked the streets calling her, I've knocked doors and shown pictures, I've rung round all the local vets and I've even been in touch with our local authority in case they've picked her up as a dead animal *shudder*
I'm walking all her old stomping grounds whilst calling her at various different times of day and hubby goes out late at night with our dog calling her. I'm also leaving food and water out and checking her bed every night in case she's sleeping in it.
We've walked miles and stopped people in the area to ask if they've seen her and it's just as though she never existed