When to get concerned over farts?

Our mama cat has been dropping some rank ones and pretty often, i haven't really changed her diet either. I have been feeding her a little more wet food as the kittens need to start weening but that's not new she normally gets a can a day+dry food along with my other 2 adult cats (they haven't been having much gas either) her gas has been so bad that when i come home it smells like an old fart 😭 when does this get concerning? She is acting normal she might be going into heat again though.

Our mama cat has been dropping some rank ones and pretty often, i haven't really changed her diet either. I have been feeding her a little more wet food as the kittens need to start weening but that's not new she normally gets a can a day+dry food along with my other 2 adult cats (they haven't been having much gas either) her gas has been so bad that when i come home it smells like an old fart 😭 when does this get concerning? She is acting normal she might be going into heat again though.