no those aren't physical....

physical withdrawl includes (but not limited to) shakes/tremors, naseau/vomiting, headache/body pains, diahreah/constipation (although you'd see that with certain rx meds) coldsweats etc....

depression/moodiness is an emotion, it's in your head, eating disorders are already known to be a mental thing, true you're physically not eating, but it's still your mind in control... sleeping, well that can go both ways, although i'd consider it mental and i'll tell you why in a sec...

the only way you could really construe cannabis to be physically addictive is because it increases your melatonin levels by thousands... but it's not replacing the chemical (like other drugs do that are physically addicting) it's just simply giving your system more then it's used to...

the reason i believe sleepign is classified as mental is because you can take melatonin supplements when you don't have bud, and you're normal again... melatonin is in no way a narcotic, so it's not making you drowsy, it's just replacing the ammount you were used to before you ran out of weed allowing your brain to work normally again.