Help with my goat!!?!?!?!?

i just got a Nigerian dwarf goat. i got her today. the man i got her from said she was 3 to 4 months old. i am kinda worried about her though. she hasnt eaten anything sense i have gotten her... she does not act like she is scared. i would think that a scared goat would be loud and try to get away. but she just stands in the same spot. i sat about 5 feet away from her for about 20 min and she had her head lowered and would just stand there the whole time. now this is the only goat i have and the first one i have ever had. she might be depressed. i just want to get others opinion on it. she seems healthy except her belly is a little extended. she lets me hold her and she has even fallen asleep on my lap and she cuddles against me. i have always thought and all the research i have done tells me that young goats are very energetic. also we have 4 dogs.. and 2 donkeys in our pasture. we also have ducks and chickens. would that be enough companionship for a goat? thanks so much! :)