Body panic

Other conditions
1

This has just happened to me for the first time in ages (Last time was about 6 years ago), but was even stronger than ever before. Had a massive body attack almost causing me to faint. I barely could see trough all the flashes I was getting in my eyes. I had to lay down for a second because I was sure I'd collapse otherwise. Hearing myself cough sounded like trough a broken set of speakers and was accompanied by known to most people ear ringing... and after it all stopped I still had a lot of white noise in my ears for the next 5 minutes. 

The cause of this all? I hit my finger against a faucet and got a little piece of metal stuck in between the finger and the fingernail, causing a relatively small bleed and a lot of pain. I'm not exactly an expert on those things (thus I'm posting here and asking for more specific information) but I know it was all just my body panicking. I didn't "ask" it to panic, I knew it was a very minor injury, but it still did panic.

My question here is - how exactly does it come to those situations? What exactly is my body doing and why does it overreact so hard in comparison to a "normal human being"? Is there a way to fix it? One of these days I'll cause myself more trouble by fainting after a minor scratch than I would by just patching myself up.

2

For me and husband a really great physcholist explained about our AMYGDALA, look it up, fascinating how it works and why it works, exactly what you described, flight or fight.

​I want to imagine you are a cave woman, you partner is out trying to kill a mammoth that is going to be dinner for the next few months, and a sabre tooth tiger comes to the mouth of the cave planning you and your children being its dinner, FLIGHT or FIGHT kicks in big time.  

​Its a really primitive part of our brain, even before what I describe above. 

​Reading about it on the internet helped me understand the why's and also helped me learn to help my husband when he has panic attacks.

3

I've just scanned trough some basic information about it now (will read more into it later) and one question I still don't really see answered here is, why do I react so much to just a metal splinter under my fingernail. Sure it was bit bigger than usual, but a normal person could bleed X times as much and not get the same reaction, unless everyone around me is just super human. It's annoying to almost pass out with every little amount of pain I experience or every little amount of blood I see.