YOU SAID:

I think I am having a stroke

INTO JAPANESE

私は脳卒中を起こしていると思います

BACK INTO ENGLISH

I think I have a stroke

INTO JAPANESE

私は脳卒中があると思います

BACK INTO ENGLISH

I think there is a stroke

INTO JAPANESE

脳卒中があると思います

BACK INTO ENGLISH

I think there is a stroke