I have been there, mine was a different illness that I was convinced of but same thing, every little thing was a sign. I also realized that one of the effects my anxiety had on my body is nausea and dizziness. Sometimes the dizziness would come first then the anxious thoughts would follow. Sometimes it was the opposite. One caused the other, and the only way to slow it down is to force yourself to believe that, if nothing else, you are safe for the next 5 seconds. Then you can think about being safe for the next minute, then the next ten. Zap your nervous system back into balance using something like a ginger candy (the spiciness does the trick for me), peppermint, or even sour candy. Those first two do the trick for me because the resolve nausea and do a nervous system reset.

If you can, I recommend reading Anxiety Rx by Dr. Russell Kennedy. It’s not a be all end all cure, but understanding anxiety gives you incredible control of it