I didn’t in the thread. I thought it was a very interesting post/paper by @PastTense, and thanks to them and v sorry for not acknowledging.
FWIW, I’ve taken steps to drastically reduce my nicotine load: I’ve switched from 4mg back to 2mg gums, and started keeping a log in my kitchen next to where I keep my gum. The log keeps me honest: “shit, it’s only been 30 minutes, dammit” so I back off for 30 more minutes or more (which is tough when drinking coffee in the AM). My goal is 12 pieces of 2mg or fewer per day, where I was just jamming like 35 pieces of 4mg/day during intense weight reduction. Reaching my goal would be (counts on fingers) 1/8th of my previous nicotine consumption. So far today I’ve consumed 14 pieces, but there’s 3ish hours before bed, so probably 17 pieces today. It’s a process.
Also: on Monday this week (today is Thursday, I was at urgent care this last Sunday) my chills vanished almost entirely. No explanation, but my hunch is my core body temp adjusting maybe? to less body fat after losing 18% of my weight. 
I’ve also restarted my exercise routine after taking a victory lap for 3ish weeks. It seems like stopping intense exercise is when everything went to shit. I’m not going nuts and I’m eating normally – no intermittent fasting, normal calories, I eat whatever I want – but I did 2 hours on the bike today, probably the same tomorrow.