The calf sleeves are a purely placebo/mental effect on my lower legs when tired or running long. I don't know there to be any actual physiological benefit, but I 'feel' less fatigued when I use them.
Plus, they're super trendy and I love to be on the cutting edge of all things fashionable.
TJ, I just gotta say I'm wishing you the best. You also got me worried by the way, your description of your tunnel whatcha mahave it sounds just like my PF... I've always wondered why mine gets worse throughout the day, not better like I've been told is common. Anyhow, sending positive vibes your way from here in Montana.