Always found coke highs were like an hour or two max, maybe mine wasn’t best but all night? Mean it wasn’t nothing after an hour but it was at the stage where coke’s name should be ‘more?’. If it did that to me in my party days I’d have said it was cut with some speedy stuff. That said I had a decent tolerance to most things at that point so my experience may not be usual either but it may not just be quality level is all I’m saying.