hi! I'm also in week 9 now. Same, I experienced nauseousness in early few weeks and got so bad that I can't even think about food or even scroll Instagram, as everything was making me feel nauseous. I thought week 9-11 would be the peak. I experienced super gasy bloatedness week 7-9 and even my saliva was gasy!
last few nights, I'm the same as you, once I lie down on bed at night, I feel something is wrong, like wan to vomit but can't vomit, but once I go to my recliner sofa I'm fine. So that's where I " sleep " till morning. Through the night I'm getting hungry too. Every 2 hours will get hungry and if I'm hungry I feel nauseous.
StonkyMimi