Does this Nightmare mean anything to you guys? (shark attack nightmare)

Hello I just wanted to see what you guys think of this nightmare

I had this nightmare a long time ago, during high school or something (can't remember the exact timeframe)

In it I was just swimming in the ocean when suddenly my leg get bit by a shark and I get pulled under, I try punching the sharks nose, It won't let go so in nightmare I pull a army bayonet out of no where and stab the Shark in the nose, it lets go and bleeds out, and I quickly swim to the surface in search of help.

But to my horror, there's nobody there, no boats, no helicopters, no surfers, no swimmers, Nobody

Not a single soul, I am out there on my own, bleeding out in the sea, Unable to find any assistance.

I wake up after that And am genuinely freaked out, i start sweating and breathing a bit heavy

Such a bizzare nightmare, since I have never seen a shark before in the ocean when I go to the beach every summer,

What do you guys think?

Thank you all for your time and have a great day or evening (depending on what time it is for you guys)

Take care!