Lost all my boobs

Krysta

So I recently lost a lot of weight, not necessarily healthy. I’m considered underweight and I’m happy with my body but I used to have big boobs and I lost mine they’re so tiny now. I also lost weight in my ass which sucks. I’ve so insecure about my boobs now because my bones stuck out where I used to have cleavage. Is there anyway I can gain healthy weight back in my boobs and butt? Pls help