I have a 3 week old bottle fed ewe lamb who up until 6 o'clock yesterday evening was a normal lively lamb. However last night she become lethargic, Ears went floppy and stopped taking her milk. This morning doesn't want to stand and breathing is shallow. I have managed to get about half of the amount of milk into her than she would normally take since last night, but a struggle. Any ideas and help, i would be very greatfull