Ok so I THINK my mouse is broken (can't be sure because it's never happened before), what happens is 9/10 times I left click it clicks twice (which can get really annoying). Is my mouse broken or is it merely a setting I triggered by mistake?

Perhaps you have a habit of clicking twice and not knowing at random times?

No I don't, I've checked.

Ok, so what type of mouse are you using and by what company?

http://www-604.ibm.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10000356&catalogId=-356&langId=356&productId=4611686018425207040&categoryId=4611686018425157673