Sorry to hear you've been struggling so much and don't feel you're getting the support you need. I was diagnosed with Asperger's Syndrome a few years ago and was experiencing mood swings myself up until recently but after a course of CBT I'm feeling much better about myself now and my mood has stabilised considerably. I hope you don't mind my asking but how have you gone about telling your wife how you're feeling? And when you say she has no understanding, is it that she's trying to understand but just can't seem to or is she just very dismissive when you try to talk to her? My wife and I personally find getting out of the house and going for a walk together or sitting somewhere peaceful are conducive to open and honest communication, so maybe try and arrange to do something you both enjoy and find relaxing and try to talk to her again then.