24mg I have dealt with depression my entire life but I'm not having much of that right now just the exhaustion.
Some similarities here jamie.
f.w.i.w. some people attribute some symptoms entirely to quitting smoking. If I get "unusual" symptoms, I go and see my Doctor. It's (too) easy for us, here in the UK. Don't get me wrong, there are many things one can attribute to quitting smoking, of course, and all help/advice is useful. I have been cutting back on my nicotine over the months and have definitely noticed a drop in mood.
I found nicotine (smoking) a useful tool in keeping my mood up. I have a theory that as my mood drops and the clouds descend (metaphorically) then mild depression can follow, and that, for me, increase my tiredness or awareness of tiredness.
Be strong, hang in there. Overall, I'm WAY better these days. Vaping is very positive i.m.o.