Just now getting sick and starting to lose weight in my second trimester

Samantha
I was perfectly fine my entire first trimester. I didn't throw up once. Then as soon as I hit 13 weeks I threw up a few times. I'll go a day or two without being sick but I definitely make up for it. I was a little overweight when I got pregnant, but I weighed myself today and it looks like I've lost about 4-5 lbs in the last week and a half. I know it's common to lose a little weight if you're overweight, but has anyone else only gotten sick in their second trimester and lost some weight? It's a little concerning. I gotta feed the baby but it's hard to keep anything down or have the desire to even try.