Surgery in which lymph nodes were removed. For example, surgery for breast cancer often involves the removal of one or more nearby lymph nodes to check for cancer. And this can cause lymphedema to develop in the arm. Radiation therapy or other causes of inflammation or scarring in the lymph nodes and vessels.
Definition of antigravity. : reducing, canceling, or protecting against the effect of gravity.
This is indeed levitation, but it is not anti-gravity. To understand this one has to clarify what we mean by Anti-gravity . Anti-gravity is an idea of creating a place or object that is free from the force of gravity. In simple terms Anti-gravity is generating a counter to Newton's law of gravity F=GmM/r^2.