Blood pressure 107/47 Mmhg?

Hello, im 21 at age woman and i just felt dizzy and really tired and i felt my heart and my chest feeling a little tight. I measured my blood pressure and it showed that. I kinda didn’t drink a lot of water last coupke of days, went more to sodas and stuff. Can that be the cause? Im regularly having low bp but now i noticed that 107 is not bad but only lower level is the odd which made me confused.