Did i have a premonition?

3 nights ago i dreamt my cat had a seizure (which she has never had before or any other illness) i put it to the back of my mind just thinking it was a random dream ..but then last night she did have a seizure which totally freaked me out.the only difference between my dream and reality was that a different person was with me but the conversation and my reaction was completely the same...what did i experience? that has got to be more than a coincidence