wieghed him for the first time last week n he was 16g, weighed him again just now ( bearing in mind i fed him 3 days a go) n he only ways 11g, seems like a fairly heafty weight loss in such a short time to me, i kno if i lost nearly a third my body weight i'd be pretty worried, he is eating two pinkies quite happily tho, 2 or three weeks ago he threw up his lunch so a week later i only fed him the one and then he shed so offered him one just after that as well,which fit into his normal weekly feed. should i be worried about his apparent loss in weight?