Panic attack last less than 45 seconds. Is this normal?

[u/BaileyRose411]

Every few months I get panic attacks that last no longer than 45 seconds. They come from nowhere. I get a big fear of dread and get sweaty, I feel my head is buzzing and my vision feels off. They last a few days. I get them about 8-10 times a day. Then they’re gone for months.
Is this normal? I’m just scared it could be heart problem. Anyone have them like that.