Seriously guys, ignoring the shit posting anons for a sec. I understand that you want a certain "aesthetic" but if you find yourself low on energy (seriously if you have to take that much caffeine) and generally are torturing yourself for a "look" please stop.
I know it can be hard to see yourself in a different light but you need to understand you're hurting yourself. Please go to the doctor, talk to family, talk to a psychiatrist, friends, whomever. Just don't wait for something horrible to happen.
I'm not judging your body or anything about that, I personally do think thinner frames are gorgeous but if you're potentially doing damage to your body when you're already very thin then what's the use?