I actually have the opposite issue... I have an extremely high pain tolerance (like I laid the back side of my hand on a hot coal by accident and burnt a hole in it because I had no idea it was burning), I get random black and blue marks all the time because I plow into things and don't realize it, I seem to not know my own strength and accidentally hurt my boyfriend when we are goofing around (I am 5 feet tall and 105lbs, he's 6'2" 230lbs lol), when I was a mechanic I snapped a lot of bolts, and my preferred fidgets are always harshly textured like my favorite thing is Velcro I just love rubbing it! I also have a really hard time falling asleep if my boyfriends heavy leg isn't on me... I wonder if this is related to ADHD or is something else?