T.G.A., though frightening, is considered benign

ASK THE DOCTORS

Dear Doctors: I was recently home alone, and I remember feeling dizzy.

The next thing I knew, I was at the hospital. My husband says I called him and asked for help, and he called 911.

I have no memory of any of this. I was told I had a TGA. What causes it? How dangerous is it to have a TGA?

Dear Reader: Your medical team has determined that you experienced what is known as transient g…