I wouldn't be overly concerned about cortisol unless it becomes a trend. This is the first time you have had it tested so just make sure to include it going forward.
Good updates man. I wouldn't even bother measuring or caring about 1lb either way. You can gain/lose more than that with just water retention. Don't beat yourself up on those numbers.
Don't focus on numbers when it comes to needing TRT. It should always come down to sides and how you feel. That is why there are ranges......people need different amounts of hormones to function normally. You might need a higher amount while I might need a lower amount.