Déjà vu feeling in life from past dreams?

Sometimes in life i get a sort of deja vu feeling when things happen that i dreamt about months ago, i had this happen when i was nee to work and a senario happened that i had dreamt about months before i had even known my place of work existed. It doesnt happen often but it always seems so weird.

Does anyone else get this sometimes?

Does it worry you when you do have vivid dreams and you remeber parts when you wake up that this could be a similar thing?

I had a nightmare last night where my husband died and it felt so real i remembered all the details and litterally woke up crying and almost setting off a panic attack because of it, i kind of worry that what if this ends up happening.