Hello mate,
I have had a look at your grow journal.
It is relieving to read that you have not added any nutes. You can rest serenely in knowing the fact that you have not poisoned her.
Discolouration happens to some marijuana leaves on any and every plant on the planet---whether or not you use nutes.
Having studied the photos in your journal, all I can say is that your soil looks a tad too dry. The leaves look dry. Marijuana loves water---not swamp-like, but she nonetheless likes to be well hydrated in the veg state.
Don't worry about the "rust" spots. You would only need to worry if you had been giving her nutes---then it could be an indication of upsetting her natural chemistry.
Give her a nice drink and tell her you are proud of her existence, and glad for it, too.
Honestly. No cause for panic or concern. Just give her a nice healthy drink of tap water. You will see her tomorrow at this time looking fresher and plumper.
:thumbs: