Cache (?) issues with WordPress

Honestly I’m not sure what’s happening, but it’s driving me insane. 80% of the time I modify anything in backend, I have to click save several times, before the new setings appear. Or I’d go back and it would have reverted to previous value. Or, since I’m using a translation plugin, it will save the title on all three language, instead of only in English. Or it will save the English title in the Spanish tab. And other crazy stuff. Sometimes just saving once and waiting works, other times unless I change the value and click save several times, nothing changes.

This is not the same as wanting to disable browser cache in order to view changes. I don’t have any issue with that.

The little info I managed to find on the web sugests the host has enabled cache even for admin, but my htaccess file doesn’t mention anything about cache.

For two weeks I’ve been trying to build my site and while I can sort of make it works, I feel like my time and sanity are slowly being lost. Help appreciated. Thanks.