Putting aside the emotional side of things, as only you can know whether or not you can cope with it etc. It is possible to get intimacy and sexuality back in your relationship with a little bit of effort, if of course that is what you decide you want to do.
Firstly, you have to feel good about yourself, PND is not going to have helped this so try and think about what makes you feel attractive and sexy. Get a haircut, legs waxed, manicure, pedicure, massage, facial etc.
Ensure you are wearing clothes that flatter you and make you feel like a woman, far too easy to get into a clothes rut. Wear sexy underwear everyday, ditch anything that isn't nice.
Get some other interests, take up a hobby, get a job, whatever takes your fancy.
Go out on dates together as another poster mentioned. Talk about things that you both have an opinion on - politics, current affairs, religiong etc. Remind him you are a person in your own right, not just a mother.
Regarding the sex, texting can be great in this sort of situation, send teasing messages throughout the day. It's just like really long foreplay, should hopefully make you feel wanted too.
Either this will wake your H up to how fantastic you are and get some intimacy and mutual attraction back or you will be in a good place to move on if it doesn't work out.
Hope you manage to sort it out whatever route you go.