In English,you can say your words are painful,but you can't say it in Chinese. You should add '让人'before painful,it means the words itself aren't painful,they make people painful. So you can say it like: 你的话让人太痛苦. or :你的话令人痛心不已or 你的话太伤人了。

the questiong is so cute , maybe english native speaker learing chinese is just like chinese people learing the english,we always directly translate it ,then make the sentance nosense, we should pay more attention on the implication ,what exactaly does that mean ,then change another way of expressing the meaning,the we can learning language well

U should say你的话让人or使人太痛苦了。because the thing make you pain is not people's words itself ,it's the people's words.In this way,you shold add 使or 让before it.