Feels like Anxiety attack

In my early pregnancy around week 9-10, I would get these bouts of heart racing, discomfort in my chest, and like I was having an extreme anxiety attack. But I’m not anxious about anything really. I would have anxiety when I was pregnant but not like this. Now it’s come back at week 19 and it’s so frustrating. I start deep breathing but it doesn’t help much. I feel like paralyzed because my heart is pumping, my chest feels tight, and my eyes get heavy. It goes away after a bit but what the hell is this?