YOU SAID:

My legs are wobbly not sweaty in the gym

INTO JAPANESE

私の足はジムで汗をかくのではなく揺れる

BACK INTO ENGLISH

My feet shake instead of sweating in the gym

INTO JAPANESE

私の足はジムで発汗するのではなく揺れます

BACK INTO ENGLISH

My feet shake instead of sweating in the gym