Sick suggie please help?

NEEDS HELP WITH MY SICK SUGAR GLIDER … :'( she threw up black stuff, but she is licking the juice off apples, and if I put her water drip to her mouth she will drink what comes out, I put calcium in her water incase she needed it... she never let me hold her before when I went to my room to feed her she was laying in the bottom of the cage I immediently grabbed her up to see if she was still alive she is crawling more now then what she was at first, I've tried giving her millworms and she isn't interested. :(((( please help