We might have been related in a past life because I study exactly in the same manner: reading loud while pacing in my room. It helps me retail stuff a lot better. I read somewhere (I think in Guyton) that if you walk and study (aloud) at the same time, it's one of the most effective ways because the neurons get pre-stimulated due to the whole walking thing, and as a result new circuits develop that help with retention and consolidation of the stuff.
Although I find it quite tiring after 10-15 min., my mind seems to have gotten way too accustomed to this technique, so it's the only way I study "effeticvely" (apart from doing a silent reading before I pace the loud, creaky, wooden floors in my room.) I usually end up retaining a majority of information this way and I always end up thanking myself after exams for having studied this way. I think it's a bit unconventional and might look odd to a stranger/acquaintance (in this case, my flatmate) but give it a go and see if it helps!
haha yes i do this too, im so glad there are other crazies😛. This worked wonders for me in undergrad. I guess ill be annoying the hell out of my roomate in a few months when i start M1