just wanted to say, thank you for the lovely posts, i was fully expecting to get an mn arse kicking
There's something really toxic about this culture that encourages women to pin so much of their identity and self-worth on looks, to the extent that we can start to feel like non-people when that begins - as it inevitably does - to fade
the OP has valued herself by her looks alone and thinks others, including her husband, do the same
^these^^ points really resonated with me. i agree that there is a culture of being obsessed with looks and youth and i guess i do get caught up in it. i read a lot of magazines ie heat and grazia
maybe i shouldn't?
i do feel i have not really got anything to offer other than my looks, i am no great shakes academically, was average at school and spent most of my 20's in rubbish jobs until i had dc and pretty much gave up working. have recently started my own business but its very small at the moment. but thats basically ALL i do, SAHM and a little bit of part time work.
my DH admits he was attracted to me because of my looks. he didn't know me as a person at all but says when he first saw me he fell in love with my looks and got completely infatuated before he had even spoken to me. it was months before we even spoke to eachother. (i can't say how we met as it may out me, am a regular, have namechanged)
i honestly don't know what he sees in me other than my looks. he always tells me i am gorgeous and sexy etc but i don't see it myself.
ironically in my 20's i honestly didn't have a high opinion of myself (as another poster mentioned upthread) but saw others compliment me and got a lot of male attention, which is the only way i knew i was attractive, and now look back on pictures and can see i was attractive. i hate having my picture took now, and avoid it mostly, i won't even have my picture taken with the dc, which is sad.
i always think my DH will be looking at younger, sexier women, and comparing me unfavouribly as when i was younger, i always used to clock older men, often with their DWs and DCs staring at me, i also got lots of older married men coming on to me (which i always rejected) so my opinion of males in general actually isn't that high tbh 
someone asked how old my DC are, they are 5 and 2, so i don't think its PND. but both pregnancys were very very hard for me body-image wise, i hated changing and was terrified of "ruining" my body. my second pregnancy i am ashamed to admit i restricted calorie intake and exercised probably too much so i didn't get "too big" :( luckily my baby was absolutely fine but i know i could have harmed her. in the name of vanity, how pathetic, eh :(
anyway, i have rambled, god, i bet you all think i am awful :(