Obsession with white cake

I realized that this problem (in addition to the pushups and clay modeling) were actually related to one sim. I haven't had this problem in a long time because I disabled the NAPS but I downloaded an old version of my core family from the Gallery and one of my sims still did all these things as soon as I entered her into the current save. So I went into CAS and created a twin of her and deleted her. When I went back in, she was acting normal. So if you notice this happening on a particular sim, you may want to do that. You can use cheats to get the new sim back to the same place the old one was as far as learned skills, relationships etc. I would NOT recommend using any cheats (even MCCC) to get aspirations back or college degrees though. That messed up my save badly. To repeat, my sim was still exhibiting these behaviors even though I had NAPs disabled. Since depending on where you are at in your Sim's development, this can be quite a big change to your gameplay, I would recommend turning the NAPs off first and see if that fixes it.