I have noticed three weird things about my clutch

In the cold my clutch pedal comes back up slowly.

And when its warm it feels different than normal clutches. Its hard to describe. The clutch feels uniform as you push it down and let it up. You can't really feel when it catches.
The guy that did the inspection said the clutch feels weird, but its still good.

Before my truck has warmed up when i push the clutch in a hear a whining noise. It stops when i let it out.

Whats the problem here?

 

What is the mileage on the clutch and what type of driving do you mainly do?
What kind of "inspection" did this guy do?

 

ive got the same problem. no whining sound but hard to shift when its cold. your not far from me so its the same cold pretty much...haha. but now my clutch is slipping so new clutch this weekend. no idea tho whats up with yours.

 

My '98 Frontier (company truck) does something similar when it's really frickin' cold out. The clutch gets stiff to push down and comes up slowly. Feels like the fluid is so cold it's sluggish. My Runner doesn't do it, though.

 

im really not sure how many miles are on my clutch. im the sixth owners so... I just know it's not new
i mostly do onroad driving, and occasionally mild offroading (no rock crawling)
When i got my inspection sticker thats what the guy said

I read in some other post something about a bad master cyclinder piston? I don't know if this would cuase my problems