5 Days into a T break, so tired

I don’t know what it is but whenever I stop smoking, I just progressively get more tired as each day goes on, I’m going to bed earlier, but it’s not even just being tired all day, it’s getting worse to the point I feel like I could pass out if I closed my eyes for more than 5-10 seconds.

Anyone else experience this? it’s actually starting to make me not want to give it up. I’m not getting the agitation, loss of appetite that I would usually get. I’ve been a light smoker the past year or two (1-2g/week) so taking a break is quite easy.