Again, not diagnosed here. I have a history of clipping my shoulder when walking around walls or brushing up against objects on walls (e.g., thermostats, pictures, elevator door frames, ...any door frames). Also, I have some trouble with tripping up and down stairs. I certainly don't think of myself as having any motor skills difficulty with these things. Usually, I chalk it up to my latest prescription. (Depending on how the lenses are cut, the cut of the lens bends and warps straight lines so they look curved.) But since I still do this even without my glasses, it may be a depth perception thing from my stigmatism.
I can ride a horse (from much practice) but I can't dance. Even though I love riding very much, I'm still safer on the ground than on horseback. Recognizing this helped me to focus instead on my ground skills, so when I used to work with horses I emphasized my ground handling skills over my riding skills and did a lot of the prep work on young horses being started for saddle. (You know, leading, grooming, handling, feet work in prep for the farrier, lots of lunging, purposefully exposing the youngsters to scary paper cup monsters. The kinds of things every young horse needs to learn to be a safe mount under saddle.)
Not sure that this helps you very much but I thought I should mention the glasses & wall thing since it shows there may be alternative explanations for "clumsiness."