Mandy I'm sorry that you're feeling that way maybe you should try your coping mechanisms for attacks ? If you don't have any you can use one of mine, they helps me a lot when I'm anxious, here they are :
1st there is the breathing exercise : Close your eyes and start counting your breath, focus on nothing but your breath , it will calm you down. 2nd there is the grounding technique it works on the 5 senses, so when you feel anxious look around you, Name 5 things you can see, 4 things you can touch, 3 things you can hear, 2 things that you can smell and 1 thing you can taste. 3rd method is repeating a mantra it can be very simple like saying " I'm okay" or it can be more complicated like repeating a specific poem or a song. 4th is also another brething exercise , fill the air up your tummy, not your chest, 4 seconds in, hold for 3, and slowly out for 6 do it 20 times minimum.
Also you can try chewing gum as it reduces anxiety, also holding breath it slows heart rate Breathing exercises , distracts you and levels breathing and heart rate and maybe try drinking Herbal Tea it clears Head
I hope this helps !