mens or not

Hi, please help me po, 3 days delayed po ako then sa 4th day ng gabi may dugo po pero patak patak lang pero sobrang sakit po ng ulo, balakang at puson ko, I had to take biogesic and gatorade kc po nung 3rd day I had to go to cr for pooping liquid twice. Nung sumunod na araw, I am required to go to work for turn over since its my last day due to I resigned. I carry heavy just like a bag of 1500 pcs of 5pesos, pag uwi ko sobrang sakit na naman ng puson ko, moderate bleeding then I take mefenamic acid at buko, ngaun po paggising ko masakit na naman puson at balakang ko at ganito po ang lumabas pagtayo ko before I poop. Sorry for the pic po