Fat chunks?

So I mainly pump, and lately I've been noticing huge fat chunks in my milk. Like when I pour it out of the bottle from pumping, into a bottle to feed my daughter, i can see the chunks and they even make a little splash sometimes. The other day I think the baby choked on one a little and then threw up the entire bottle. Idk what to do! Idk if it's diet related? I haven't changed my diet at all. Oh and because of these chunks I'm getting more clogs. Has anyone else had this or know what it is??