I have bad bloatedness for a while now. i am not sure what is happening? could it be dairy food related?

Yes it could be: Feel free to try a couple weeks without dairy and see if it helps :)

Yes: Lactose is the sugar in most cow milk products. About 1/4 of adults lose their ability to digest that sugar. If they cannot digest it, gut germs feed on it & trigger gas production, cramping & loose stools, depending on the amount consumed. Small amounts may be tolerated without symptoms. OTC enzyme products can help stop symptoms as would using lactose free milk.