Eating like a small hog 

So many different issues all intertwined.
I had very ‘disordered eating’ as a teen and would starve myself and then binge and purge, but I was a high achieving academic and very fit so, even when I plucked up the courage to tell my mum, no one noticed or cared. I am tall, 5’ 8 and at the time was an hour glass but very thin at 8 stone so just seen as being attractive.
I was attacked by a taxi driver at 17 and I think it threw me into a tail spin and just piled the weight on.
I have terrible body image and can’t trust what I see in the mirror and also had an abusive partner from 19-27 when I finally left. I then lost weight living by myself and eating well but fell pregnant before I was separated from him for a year 
I generally eat well before mid afternoon - breakfast is either porridge and fruit or eggs of some sort on toast. Today for example was poached eggs and avocado on toast. I understand that avocado is fat but I’m happy eating it as it is ‘good’ fat.
Lunch is often something like a cheaty chowmein with noodles and soy sauce, onion, cabbage, peppers, sometimes prawns, or soup and toast or a mix of salad veg and cheese on a plate.
I find dinners difficult as, although I am the sole cook in our house, budget is tight and DP is really fussy. He’s got health issues and allergies and when we met he ate well, but as he’s got older and had more reactions he’s nervous about food. He’s allergic (as in anaphylaxis and epi pens allergic) to peas, chickpeas, lentils. DS is gluten intolerant. DP basically wants meat and potatoes every day, or egg and chips and won’t eat much else. I’m not a massive fan of meat and my body just doesn’t appreciate or function well with that kind of diet but often, due to cost and ease, I’ll just eat it.
Mid afternoon is terrible for me and that’s when I’ll hit biscuits, chocolate etc.
I don’t drink (not really, maybe a gin and tonic a month) or smoke. I used to binge on sweet stuff when k was younger but I honestly don’t feel I’m anywhere near those levels now.
I’m often dehydrated. I find drinking difficult. I don’t know why, maybe control? The less I drink, the harder I find it, like I feel my throat closing up. I hover on the edge of dwhydrationmost days and yesterday I didn’t drink at all and was so annoyed with myself because I felt terrible when I got home from work.