Few years ago, I had panic attack due to some cert

Few years ago, I had panic attack due to some certain situation, although, I wasnt diagnosed I read from Google, the symptoms and was told by someone after having discussed my issue. This began 2years ago( late last year ) and ever since then, It often occur, the palpitations, fear of death, leg jerking, and insomnia.

Gradually, late last year,it rarely occur unlike before when it happens everyday.
In a nutshell, earlier this morning, I was having my morning prayer when I felt kinda strange: fast heartbeat, shortness of breath and fear.

Are these symptoms of anxiety or something else.

I shall be looking forward to your response.

Thanks.