This nifty chart explains what makes a hangover feel like it does and gives some good tips on how to manage it.
PS I’m not sure where you’d be able to source activated charcoal and I’m not sure I would want to take this as in A&E medicine it is used to make you sick! :s
PPS Asthenia discussed under (7) means weakness and from Wiki: weakness is a symptom represented, medically, by a number of different conditions, including: lack of muscle strength, malaise, dizziness, or fatigue. I didn’t know what it meant and had to look it up! 😉