Relaxed high? What’s the cause ?

Yesterday I did a fair amount (for me) for a work night and work the next day - ended up going to sleep at about 10 am and having to be awake 3 hours later - but I was doing large lines (than I normally do) and I was laying in bed not even feeling shitty after slowing it off for the night (but also doing more here n there haha) but I felt super calm and no anxiety at all - just enjoying breathing - I had a couple promethazine and weak codeine but I often do that so don’t think that’s what caused it? But doing the same stuff tonight and it’s not like that?