Worth to retest?

Me period made no sense this month (12/6). What's normal really heavy, lasting four days and really regular, was anything but. 1 gush, a little spotting, and 3 tampons total over 4 days is unlike any period I've ever had. Only real symptoms are tiredness, on and off  nausea, and odd hip aching/abdominal aching. Breast are not sore, I don't/never have tracked temp or cm so I'm not really sure... I've taken 2 tests, neither were FMU, and to me, neither had any "faint lines". So, I'm wondering if you girls think it's even worth testing tomorrow with FMU, or if you only retested because you thought you saw something... Help?