I didn't have spins, but during the first couple of weeks post-injury I sometimes had a falling sensation when I lay down in bed. Later I had some mild balance issues, including feeling slightly unstable when I first lay down in bed, as if I were floating or my bed was slightly unstable (weirdly, this sensation seemed to appear several months post-injury). It has now been almost six months since my injury and this issue has pretty much gone away (knock on wood - as I always do when I say such things).