insomnia

hi have u tried insomnia during your 31st weeks of pregnancy. what to do? i feel so depressed,i cant sleep until the sun rises nlng gyd. my first bby is sick and im the one who takes care of her. i have so many thoughts on my mind. My mother also was sick from depression until now. pls help what to do. feel so stressed. My last bp was 80/60 and said that i am so anemic. and if i drink vits. its useless bec i will just vomit it. ?