i was playing with my dog late last night.in the morning he was still ok,this afternoon he aproached me,he was weak like he couldnt hold himself up,hes alert but stumbling,he also has an appetite,hes not foaming out the mouth or anything,and i see no injuries,i just hope he makes it through the night hes weaker now,he cant stand up at all,hes a five year old rott weighs about105 pounds,i noticed two days ago he was eating a little grass.any advise on what i can do will be appreciated.im still looking for a 24 hr vet,no luck.