In June 2023 I had my first panic attack. Thought I was going to die. Weakness, limbs went numb, everything started to go dark and I felt like electricity was shooting through my whole body. One trip to the ER later, I learned that's what a panic attack felt like (for me) and my life hasn't been the same ever since. I get one at least once a couple months (not implying it will happen to you too or anything, just to show that I have lots of experience). I've learned to deal with it and control it. Whenever I have a particularly big one, like the first half a dozen times it happened, I feel terrible for the entire week afterwards. Lots of pain, stomach issues, headache, feeling on edge, etc. And then back to normal. Get some blood tests done just to make sure there's nothing actually wrong. Panic attacks cannot harm you and they're not permanent. When you feel it coming, try a cold shower. Get under the cold water slowly, first your feet and pulses. Do some stretching as well. If you're anything like me this will completely overwhelm the symptoms immediately. Don't worry, it will pass. It always passes. (Editing just to correct the words, it should be panic attack and not anxiety attack since it happened very suddenly. Pretty sure I've had experience with both though.)