Lethargic , sleepy and nausea

Hi mummies , im only 9weeks pregnant on my scnd baby but im feeling super lethargic. I honestly dont remember my first born this tired but do any of u have advice on being less lethargic and sleepy . I sleep 2 times in a day😭 and my nausea is like taking a toll of me haha . Not having appetite but hungry. Looking at some food makes me wanna throw up😭