Ay, I feel you, a few of my mum friends had this in their third trimester jugak, it's quite common sebab baby dah besar dan pressure on your stomach, tapi better check with your doc to make sure semuanya okay especially since your appetite dropped. Makan apa yang boleh telan untuk now, nasi heavy memang sometimes tak lalu, so makan mee/bihun is fine as long as you're getting nutrients, try to sneak in protein and veggies in lighter forms la, or even condensed milk in drinks if nothing else goes down. Monitor how you're feeling overall, and if the vomiting gets worse or you start feeling dizzy or weak, jangan delay lah call your gynae, better safe especially at 34 weeks!