Implantation experience?

Ashlee • Working on miracle #2!

I know this is such a back and forth topic whether or not its a real thing... But for those who believe to have had implantation pain.. How did it feel? Im 5dpo and just felt some sharp pulsing pains on my left side. Lasted maybe a minute? I also have a nagging headache and overall feel like shit. (I know it's too early to chalk it up to pregnancy, just humor me lol)