Implantation cramping....what did it feel like?

So I've had some brown spotting for two and a half days now. AF hopefully not coming the 23, so there's still 2 days. But I started two days ago. I've been getting cramps like pinching on either side a few times but then last night, I got a few cramps like AF was coming...to the point where I couldn't really sleep. I don't know if it was because I was making myself crazy thinking AF was coming early or because of the pain. But my AF never shows early. Now, it's just been dull pain off and on all day. Still brown spotting. I'm 11 dpo.

What did it feel like to everyone else??