YOU SAID:

i was worried that your mum was worried about the thing she was worried about of course

INTO JAPANESE

もちろんお母さんが気になっていたことを気になっていたのが気になりました

BACK INTO ENGLISH

Of course I was worried that my mom was worried

INTO JAPANESE

もちろんお母さんが心配してたのが心配でした

BACK INTO ENGLISH

Of course I was worried that my mom was worried