I wanted to address weed withdrawals. For heavy smokers, there's a fairly high chance you will encounter PAWS, Post Acute Withdrawal Syndrome. The first time I experienced this I had no idea what was going on and my body's reactions freaked me out. Eventually I found the Leaves community on reddit and discovered a bunch of people going through the same stuff.
The most common symptoms are nausea, lack of appetite, brain fog, anxiety, anhedonia, insomnia, stomach issues (gas of all kinds, diarrhea or conversely constipation, shitting mucus), and muscle twitching, among others. I only fucked with flower, but for those into vapes their symptoms seem to be the worst. On average it appears that the symptoms clear up within about three weeks, although there are others that are worse and less than that. Every time I've quit it's around 21-28 days that all of a sudden my thinking starts to get much clearer and I have a ton of excess energy.
I miss all the insights that weed gave me and how it seemed to allow subconscious thoughts to surface more often and easily, but after a while all the fun and enjoyment of it wore off and I was left with feeling I had to do it to function. I'm now on three and a half weeks off (third time quitting) and things are finally start to be getting back to normal. Good luck to all the sober slap pals and keep going! It really is better on the other side.