Every dream one has is up for interpretation (and with the scale of dreams I have - I have A LOT of interpreting to do) and quiet often do mean something more than what you see.
From what I can tell, the concept of you being "trapped" in your own household is related to your current living conditions - with these "Combine" being your authoritive figure in real life. Your paralysis - while it may not be related to the true motives behind the dream (as the paralysis itself is caused by chemicals released by the brain during a certain stage of sleep which stops you from acting out your dreams) - may mean that you simply do not possess the means nor the will to "escape" from your situation, for whatever reason that may be.
Either that or it might be time to cut some hours off of your gaming sessions
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