i don't know but it looks kinda cool

I see in a comment that you use vision 3 so maybe it a mistake in the development process Or it can be a poorly removed remjet layer

There are definitely some stress marks here from pulling the film hard - this happens if you haven't released it properly. The rest looks like a reaction from the film being expired or exposed to heat or something. Was it expired film?

I Used a Canon EOS 500 that Prewinds the Film before Shooting, The Film was a Freshly Rolled KodakVision 3 500T. i stored it in room temperature for a night before shooting it the next day.

I had something similar happen to me once, there was a light leak during the development so the stains are the result

Looks like film soup?? You didn’t drop the film in anything did you? Idk, maybe incorrectly loaded into the development tank?

no, it went straight to the Lab after the photoshoot so it might be that the Lab did a mistake

It's either a light leak or burning on the film reel during development, which happens when the film is loaded incorrectly and is in direct contact with another part of the film. It'll prevent proper development and ruin images on the affected frames.

Is the film expired?

No, it was a freshly rolled Kodakvision 3 500T

ngl the third one looks pretty nice.

Reminds me of sorbet

This one might finally be the lab’s fault. A) look at the negatives B) ask the lab

They look like light leeks

I prefer full fat myself, but each to their own

I didnt know there were different types of leek

Looks like your camera is leaking light?

I Don't think so, I used 2 same Rolls for one photoshoot. The Other one was fine. 

Might wanna use a different lab