I find talking about food to be incredibly stressful, and I'd take a question like "are you having lunch?" as an attack or potential guilt/power/control thing and probably get mad too. I agree that you likely didn't do anything wrong, but that might not be a great way to talk about food with her.
I wonder if there's different way to word it so it's not taken as a direct attack or accusation. It might be worth asking your sister what she's comfortable with or if it's easier for her to just not talk about food at all. For example you could focus on yourself just say something like, "I had a really good lunch today, it was really tasty. Let me know if you want the recipe or want me to make extra for you next time." instead of mentioning her eating habits or asking a question.
I think just by modeling healthy eating and a healthy attitude/behavior around food can do a lot in itself without actually directly talking about it. I know it has for me when I've lived with roommates in the past.
Please do not give me virtual hugs unless you are only using the hug function on threads. Thanks.
You can't always keep it separate.
This is happening, this is part of you.
Oh it's a rubbish feeling when that happens but it doesn't mean you're huge or greedy! It could well have just shrunk in the wash and even if that's not the case, a slight change in size since you last wore that dress isn't a bad thing- good health and a happy relationship with food is so much more important than what size you are. Personally, in this situation I'd be looking for an even better dress that does fit at this point- you deserve to feel comfy and confident!
I would guess because your body is pretty confused from all the eating disorder shenanigans! And also weight fluctuates naturally so if you are weighing yourself super regularly it won't necessarily correlate to what you've eaten that day.
If you aren't weighing yourself, I'd pay attention to how your clothes are fitting. If they aren't fitting any differently, I'd question how accurate your view of yourself is. If they are fitting tighter, then that might mean you've gained weight. I'd still question how accurately you're viewing yourself though. Tiny changes in weight aren't super noticeable to most humans, while larger changes would tend to happen gradually, and you'd actually be more likely to get used to it over time versus noticing every little change.
That said, long term, under eating can actually cause weight gain. Under eating causes your metabolism to slow down and it can eventually shut down too. If your body thinks it's never going to get enough food, it's going to hold onto everything it does get. So long term, not eating enough can really do a lot of damage to your body. Not saying this as a scare tactic. Just that I know other people who have had long term damage, and that has been one result of it.
Please do not give me virtual hugs unless you are only using the hug function on threads. Thanks.
You can't always keep it separate.
This is happening, this is part of you.
Given that you've struggled with ED issues, I'd say that your mum is potentially a better judge of whether you've eaten a sensible amount or not than you are!
I'm ok. My mum just told me I need to eat more breakfast so I told her my weight is healthy and I am functioning fine and she said, "barely." She says stuff like this most days.
