Am I being paranoid? Worried about various discoloration

My Bhut adolescents are doing well, but some of the plants have strange discoloration on the leaves. 
 
For reference, they've been primarily indoors their whole lives under CFLs. I recently started hardening them off, only approx an hour a day for the last few days.
 
White spot on one leaf: 
http://imgur.com/Fs1AMxF
http://imgur.com/NvP0j6D
 
The top leaves are yellowish:
http://imgur.com/4Ap4lJo
 
Light green/ yellow discoloration scattered on these leaves:
http://imgur.com/j197X3N
http://i.imgur.com/B8avXAH.jpg
 
All of them in a row: 
http://imgur.com/mpapDcG
 
I'm using Promix BX. After transplanting, I started these guys off on Happy Frog, following the instructions. They've been fed once in the last 2 weeks. 
 
I wait until the promix dries out to water, I initially over watered once early on but they sprung back after letting them dry out.
 
Am I just being crazy? This is my first grow and I'm anxious to not screw it up. 
 
The white spot is most likely just a touch of sun scald. While an hour doesn't seem like much, it can be too much if it's a very sunny day in their first couple of days and they're getting it directly. Ideally give them a bit of shade to start with, then move to full sun when they seem more acclimated. Keep in mind that hardening off is also to get them used to the wind, so protect them if strong winds are expected in the first couple of weeks.
 
Back
Top