Unhealthy food n drink

Feeling depressed, currently 24 weeks, no appetite, still vomit at least 3 to 4 times per day. The only foods that make my appetite better are fast foods and unhealthy foods. And keep feeling thirsty, the only craving that will increased my appetite are soft drinks n cold drinks. But everyone around me keep nagging on me, it make me so stress n depressed like I'm harming the baby. I try to limit my intake but it only decrease my appetite