sleeping and eating disorder

Hi... I have a bad sleeping and eating disorder. I will be sleeping throught out from morning 6am onwards till afternoon, afternoon until night 12am... In the morning 12am onwards, i will not b sleeping... I dont feel like eating from 6am onwards till afternoon. Always feel like eating at night after 7pm. Giddy and gassy at my 6 week. Please help :(#pleasehelp #advicepls #pregnancy