Don't you feel really dull when you have diarrhea?
Don't you feel really dull when you have diarrhea?
下痢してる時ってかなり体だるくならない?
feel dull:体がだるく感じる
diarrhea:下痢
have diarrhea:下痢になる
他にも相手に同意をもとめるような表現でしたら以下のように言っても!
You feel really dull when you have diarrhea, don't you?