Are your parents actually getting a divorce? That can bring about a lot of fear and anxiety, which isn't uncommon in people who have to experience such an event. It is emotionally traumatizing and it destroys your life situation and sense of safety in many ways and that is reflected in your dreams by the giant black machine which is destroying everything. Change is inevitable, and something it feels like the end of the world because it is hard to accept, especially when farmiliar and comfortable ways of life are disrupted with such sudden and harsh transitions such as a divorce.

I don't think you should worry too much about these dreams. Dreams are a good place to confront and learn to overcome our fears and anxieties if you can learn to recognize that you are in a dream while it is occuring. Also, don't let your parent's seperation make you think that they don't love you, because that's probably not true. Unfortunately adults can sometimes forget about the emotional needs and reassurance of their children while they try to focus on their own, which is where much of the anxieties in children with divorcing/divorced parents come from, because they feel like they are being abandoned. If you feel like that in waking life I'd suggest sitting down with your mother and your father (not necessarily at the same time though) and "get some answers" from them like your dream suggested about where you fit in to this new life situation that they are creating and you have little control over.

That is what I would do anyway, so I hope that helps. And if I have misunderstood what you were saying and that your parents are not currently going through a divorce, then perhaps trying to find a doctor and getting a full physical checkup done. Ailments in the body can sometimes be percieved by the subconscious long before any visible traits appear on the body itself.

Anyway, take care.