@SilentVoices0178
Hey there, Silent!
That's quite an interesting question you raised there "Is it a eating disorder if I'm just never hungry?" which I'd love to explore more on without jumping to conclusions. Firstly, I'd just like you to know, you aren't alone. Many people struggle with consuming sufficient amounts of food that is sustainable long-term, and that behavior may be or may not be associated with having an eating disorder. It sounds like you've been eating less and less for a few years now to the point where your mother seems to be getting concerned about it.
I think it's important for you to note that if you don't eat much and regularly, your body gets used to that, and you start to feel less and less hunger pangs and more feelings of fullness after eating mere amounts of food, since your stomach size correlates with how much food you eat. I'm saying this because you said "Do I force myself, pretending I'm not feeling sick afterwards?" which tells me you often feel sick after you eat, initially when you start eating more you will feel sick and bloated but if you are consistent with it during meal times every day, it will change and your hunger will be stimulated again. At the moment, because you haven't been eating enough for quite sometime, your hunger signals have been interrupted which is temporary and can be changed with slowly changing your lifestyle and eating habits. does that make sense?
Now, as for the "Eating disorder" bits, it's important that you consider reflecting on these few questions to see whether that's a probable Eating Disorder behavior or not. Reflect on when all this began? Are you skipping out on social events to avoid food? Do you label foods as "good" or "bad"? Do you have compulsive behaviors surrounding food? Do you find a sense of control when you restrict yourself from having any food?
The more you understand where it stems from, the better you can plan on ways to tackle the situation!
I do hope I managed to give you a bit of perspective in your situation. I am no medical professional, so I can't diagnose you based on what you wrote, I would suggest you seek professional support if you think you need some sort of intervention.
(P.S With the amount of tea you're having each day, that definitely can curb your appetite for food, don't you think? Do you think you're replacing the energy you get from food by drinking so much tea?)