I Was Having Hospitalized Last Week. I Was Told I

I was having hospitalized last week. I was told I was having TIAs. One Monday morning landed me in the ER thinking I was having a stroke, then admitted for testing. CT scan and MRI are good. The neurologist said it must be anxiety. I had 2 more while there, one a day after coming home. I had another today. Is it normal for them to keep happening? How many are too many?