That 'strange sensation' you are feeling after urinated is a sign of what I think to be a slight bladder infection. I get bladder infections often so I know what its like, but usually it makes you pee alot, but you could just have a slight infection going on, id check into going to the doctors, you probably need some meds, they will clear you right up, its an easy process. The smell also points to some kind of infection I think, you sure you don't have a tampon or anything still in your vagina? It does happen, women forget about them and they rot in there and it causes an awful smell. But this is just my advice, best of luck! : )