before i invest in spira shoes, can some of you help with my questions please? i have plantar fasciitis ... both heels... really bad this week in one heel. ??? taking prednisone pills helps along with specific a.m. & p.m. stretching. i too can't be on my feet and longs very long it seems. do you think the spira shoe would help this? also, are stna's and lpn's and rn's (in ohio--at ohio hospitals etc.), really allowed to wear this style of shoe? they look like a tennis shoe. thanks.