YOU SAID:
I have fallen and I can´t get up
INTO JAPANESE
転んで起き上がれない
BACK INTO ENGLISH
I can't fall and get up
INTO JAPANESE
落ちて起きられない
BACK INTO ENGLISH
I can't wake up
INTO JAPANESE
起きられない
BACK INTO ENGLISH
Can't get up
INTO JAPANESE
おなか痛い
BACK INTO ENGLISH
I can't get up!
INTO JAPANESE
おなか痛い
BACK INTO ENGLISH
I can't get up!
That didn't even make that much sense in English.