Brest milk spoiled?

Madison • Twin boy mama🥰

So my breast milk keeps going clumpy even tho it’s been in the fridge (that’s set at the right temp). It still tastes sweet and normal and smells fine but I was just wondering if it’s safe to give to baby and if anyone else has this problem? It’s happening to all my milk and I don’t know why. I heat it up with hot water instead of warm.