Hi, I had a RNY or gastric bypass 7 years ago (at 33). It was one of the hardest decisions ever and incredibly scary. I had it on the NHS and my BMI fell just in the range that it was acceptable without comorbidities. My GP suggested it (all my diet efforts had been recorded) but I felt I had failed. I don't believe I would qualify now and the process is more rigourous and includes counselling (which is necessary imo).
In the first year I lost 8.5st it didn't make me happier but it certainly made me healthier. I also got a significant promotion at work - probably because I looked the part (in part!). I also got accepted on a travel exchange programme. So I guess you could say it facilitated happiness. Getting into a size 12 in topshop made me cry!
I have and alway will have a difficult relationship will food. In the past 7 years it's been tough - I can't always eat what I want, I suffer from dumping syndrome (which is horrid), take lots of bits and minerals each day and my hair constantly falls out.
I did put weight back on (4stone) but it is easier to lose it again (lost lots during pregnancy and plan to keep it off).
I can go out for food and often have child portions as it's cheaper and less wasteful.
Remember that the biggest issue generally is excess skin - so be mindful of that. I haven't had plastic surgery, but many say this is worse than the initial surgery. Oh, my mum also says all gastric bypass patients have a similar 'face' post weight loss!
Would I do it again? Absolutely yes. Single greatest piece of advice? Research, research, research. Look out WLS info on the web and Facebook it's an amazing resource. Oh - would I have the band? Absolutely not.