This was me as a child. I wasn't obviously less intelligent than other children in my class, but frustratingly, they did seem to pick new things up quicker, and they all seemed to have better co-ordination and to dance better and move more gracefully etc..!
I was never cut any slack by parents or teachers though! I was always being told that I too could do x,y,z tooo, and I just felt like it was one more exhausting uphill challenge. I could feel my parents' frustration with me, and I was powerless to change. I kept up, mostly, and occasionally I was good at something, so nobody ever thought I actually needed extra help.
Dyspraxia is called the hidden handicap, and I think a lot more of us than we think are on a sliding scale.
Check out the dyspraxia foundation wesbite. There's an excellent checklist on it.
My dc2 has it for sure, and my dc1 has ADHS (but mild TG). However, luckily instead of being nagged for not trying hard enough, they're both getting specialist extra classes. Nobody would ever know if I didn't tell them.
I found school really hard, yet everybody around me kept telling me how intelligent and capable I was, if only I'd do things properly and better it would all fall into place. I didn't like to argue with the information that I was clever and capable, but yet, it did leave me very confused, if I was clever then why was everything so hard?!
I pick battles with my daughter carefully. At the moment she's learning tin whistle! and she's so laughably shite at it! but I just put her in charge of her tin whistle homework because I've taken the decision not to nag her about something that won't matter in five years time.