Kinshifting

Is there a "limit" for how long someone could be kinshifed for? - because I've been kined with Pony boy for a while now and sometimes it switches to Text but I'm unsure it feels weird and I'm honestly oddly scared some someone thinking I'm faking when Im not, it's a fear I've always had with a lot of things I'm just wondering if this is normal or not or maybe im triggering it and not meaning to because I'm really hyper fixated on S. E. Hinton books and the outsiders stuff like that in general