Weight Advice Help??

I’m 4’11 feet tall and my heaviest weight was 148 pounds but I’m now about 137pounds. I used to weigh about 88 pounds and was super unhealthy and underweight but now my BMI says I’m overweight... I wear a medium top normally and about a size 8 pants depends on the brand but i feel like I don’t look overweight. Any thoughts? Or advice?