i walk on my toes when i'm slightly stressed, but i have been conditioned to at least try flat-footed walking when i'm around other people; although even then i land on my toes first, i just angle me feet less so i sink down to my heels during a step, which masks the toeswalk.
once i'm alone though, i lift up and go full toe for a bit.
this has also made my tendons stiff, i can't really run for distances, as long-distance running doesn't lend itself for tiptoes, it almost requires heel-first landings, which i can barely (if at all) do... sprinting is a different story, i can get from standstill to my topspeed off the block, which often surprises those around me during sports (soccer and basketball, for example)