Feeling stressed

Currently I’m week 17 of my first child and before I get pregnant my food appetite not good and I used to it since college time will eat little bit. But now after get pregnant my appetite even get worst I become less eater but compare to early pregnancy now much better. The thing is my husband and in law not even understand abt my food intake and complain abt this issue and even my husband curse me we I waste my food. Feeling y la I get pregnant and wer I need to go thru so much stress for the people who not even understand what I’m going thru. I can feel My stress level getting bad till I got neck and back pain. I can’t control even though I know it will harm my baby. ????