Question About Xanax .25mg x3 daily

I am recouping from a third back surgery. I am now experiencing what my doctor calls panic/anxiety attacks. I fell like I am falling apart and will not be able to get my body back to what it used to be. I am worried that I am going to become overweight from not being able to do anything while I recover from the surgery. My doctor has prescribed Xanax .25mg three times a day as need for these attacks. When asked about this drug being addictive, I was told not to worry about it, as he felt that I would only be on it for a short period of time and that once I was fully recovered from the surgery, I will be able to get back outside and continue my physical conditioning. I am very concerned about this drug, as I hear both good and bad comments about it. Should I take this drug, or just fit these attacks and hopefully they will go away, once I am fully recovered?