YOU SAID:

I get fat when I eat cake

INTO JAPANESE

私はケーキを食べるとき、私は太ります

BACK INTO ENGLISH

When I eat the cake, I am overweight

INTO JAPANESE

私はケーキを食べるとき、私は太りすぎだ

BACK INTO ENGLISH

When I eat the cake, I'm too fat

INTO JAPANESE

私はケーキを食べるとき、私は太りすぎだ

BACK INTO ENGLISH

When I eat the cake, I'm too fat