Scary Skinny?

I’m 5’4 and weigh 98 pounds. That puts me at a BMI of 16.8. However I think the scale is lying to me because I don’t look 98 pounds. I used to struggle with an eating disorder while I was in middle school. I recently acquired a very low appetite. I used to snack all the time and eat 3 full meals and now I’m lucky if I eat more than 3 things a day. I’m super picky when it comes to food and I will go the whole day without eating and not care. Should I be worried about my low appetite? FYI: I was 88 lbs when before I covered from my eating disorder. A lot of people assume that when you’re underweight that you look like you’re on the brink of death but that’s not true for me. Below is a pic of how I look at my CW.