Cardi B released new track "Press" on Friday ... “I do whatever the f– I want with my body.” “My job as an entertainer is a 24-hour job, bro. So, no, I don’t have time to work out ...

"Cardi was overzealous in getting back to work, she didn't take the time necessary to full recover from her surgery," her rep tells PEOPLE Cardi B has postponed ... toll on her body and she ...