Ay alam ko yan, kaya mo yan, maraming moms sa circle ko na-experience din ang ganitong symptoms, parang twinges sa puso with heaviness tapos sore boobs pa, grabe talaga! Since nag-PT ka na at negative naman, pero tuloy-tuloy ang discomfort mo, i-suggest ko talaga na checkup ka with your OB or doctor lang para ma-rule out kung anong cause, baka hormonal lang siya o stress-related, pero better safe than sorry lalo na kung persistent na siya. Hopefully it's just pre-period symptoms or something minor, pero important ma-assess ng doctor yan.