First of all, some people are just thin, but if you're strong and have plenty of energy, then it isn't unhealthy. That is thin for that height. But then you say you don't eat because you're not hungry because it's hot. Well, it's hot all over, but it doesn't stop people from having an appetite. If you smoked pot for a long time it might be you're having a hard time enjoying things without being stoned, including food. It takes a while after you stop to realize you can get access to all those intense feelings you go while being high because you've learned you can access those feelings without needing to be stoned to do it. I don't know, but having quit myself many years ago, and I don't think I ever relied on it as much as you did but still, certain things just took some time to enjoy again, such as movies and music and sex. But I did figure it out, and you will too. But if you want to eat but say you can't, maybe it's not technically anorexia but it is a mental block you have to get past so you can get the nutrients you need to be healthy and stay healthy. If you want to eat, the only thing stopping you is you, so why is it do you think you really don't eat, and don't blame it on the heat, it's hot everywhere.