I wee so much

it's been happening for a long time but I wee so much and I don't know why, sometimes i seem to wee more after having something really sugary like Coke or something like that but my wee is almost always cloudy, and sometimes I'll feel so busting and when I go it's the smallest amount and then sometimes I'll got for a wee and about an hour later need another massive one, it doesn't build up its just u suddenly need a wee ??