Everyone is worried

Ladies... I’ve lost a lot of weight. Almost 60lbs since two years ago. But I have been losing more and more weight. Everyone is telling me I’m too skinny and that it’s unhealthy. My boyfriend commented and said I feel smaller than I was a few days ago. The thing is... is I don’t feel skinny. When I look in the mirror I think I’m overweight. Does anyone else feel this way? Has anyone gone through this?