This may seem silly

This might sound a bit silly, but my 3 week old constantly frowns! She looks angry all the time! And I wonder if she is uncomfortable, or unsettled with me, or if this is just the face she has! She doesn’t cry, only when she is hungry or naked due to getting changed or having a bath. Otherwise she will be wide awake, just staring, with this bloody frown on her face! Is this normal for young babies who can’t express themselves yet? Or is she genuinely a misery??