why do people continually feel, upon seeing me eat a large meal, that i need to watch what i eat, as before i know it, the weight is going to pile on? like 1) it is inevitable and 2) i should avoid it before it happens and 3) i should even bloody care
I am 33, 5'3, weight 9.5 stone, in size 8-10 clothes, carry my weight internally if that makes sense (i suspect its the weight of knowledge in my head 
). Have always been between 8.5 and 9.5 stone, no matter what I eat. Have always had a huge appetite, not watched what I have eaten. probably eat too much junk and not enough fruit, not enough water for sure, but am healthy enough, have had two children (4 and almost 1), have an abundance of nervous energy.
An example. yesterday. out for lunch with some friends. To a fab fish restaurant by the sea. I had Haddock, chips and peas, 2 glasses of white. The meal, as normal was enormous, but absolutely bloody delicious, so i ate pretty much all of it. For some reason the chef felt it nice to give me two bits of freshly battered haddock, no way was i going to waste it! Anyway, half way through, my friend, who by the way is not portly herself but has a little weight on her hips now, said 'you are going to have to watch how much you eat you know, you should not really eat all of that, it is going to catch up with you'.
I hear this so often. It used to be humorous, i took it as a sort of backhanded compliment, but now, its just grating. Why do I have to watch what i eat just in case one day i might get a fat backside?
AIBU to just say 'oh do fuck off'?