I also live in a small apartment with a husband and daughter, however I choose this. Large spaces are scary to me and I need my daughter within a certain amount of space between us to feel "safe". I am constantly on edge, picking things up, moving the curtains, adjusting pillows, fixing floor mats, etc. It's so frustrating, and sometimes I just want to sit down for 10 minutes and relax. Even writing this comment makes me want to get up and vacuum (I'm definitely going to go vacuum).
SO... I may have the opposite feelings in terms of space, but I totally understand the clean part. I think it's a bit of obsessive thinking/actions, which are all a part of the spectrum.
You could try looking into minimal living, as it may be a good option for you to keep your place clean but functional. :)