I did know whether to post this in relationships or here, as it is somewhere between the two.
I think I'm looking for other people that this has happened to so that I don't feel totally strange, and I am definitely looking for advice on how to cope with this within my relationship with DH.
I have been married for nearly 10 years and have three small children (youngest now two). Sex has been very infrequent since kids (maybe 4 times a year, with none during pregnancy/first year) and to be honest wasn't very frequent before kids either. I just didn't have a high sex drive, and DH learnt to cope. I always thought he'd like more sex that he was getting!
I'm the last two months my sex drive has gone through the roof, and for the last week has been all-consuming. I can't think of anything else and spend all my time plotting when I might get an hour to be alone 
I have no idea where this has come from, but it is distracting me from normal life to the point I am not getting things done at home and at work. It is also freaking my husband out somewhat, though he's trying to be accommodating. I have spent the last week watching sensual porn to learn how to masturbate, having never been very successful with that before. This has helped because I can deal with some of this on my own now, and has also increased my confidence so that when we do have sex it is vastly better than it was.
But I still have the problem that I distracted and obsessed and spending too much time thinking about sex. And I still have the problem that my husband is struggling to keep up and is perplexed about where this has come from (as am I, but I kind of don't care!).
Anyone else been through this? What on earth has happened to make me so obsessed? And any ideas on how to gently bring my husband along after him spending 10 years 'ramping down' his sex drive 
Any advice or similar experiences?