Anxiety

I had a severe anxiety attack Christmas eve and now my doctor is wanting to get me on  meds for my anxiety right after I have my baby. I'm due next month. Thing is, I plan on breastfeeding and I'm completely scared to take anything while pregnant or breastfeeding..even if it's something that my doctor says will be fine. Is anyone here on an anxiety medication and breastfeeding? If so, what do you take?