Heavy bleeding. Pain n gastric issue!

Dear dr, I have pcod which diagonise on oct. My period will come exactly on 28th day of every month. It will stop 6 or 7 th day, again I will get spoting on  10th n 11th day. In jan month my bleeding not stopped I took deivry n then it stopped. Again in March the same pblm. I took primoultn for 25 days. I got periods on 17th April. My bleeding stopped on 6th day n 10thnday light stopping there n it stopped. I got gastric pblm. I took sompraz n bifiliac no improvememt. I met gastric dr on this monday for this. He suggest nexpro40 n lesuride 25 daily twice. I got periods on may 18th. I have heavy bleeding. Today is my fifth day.. Is it due to I'm taking the above medicine lesuride 25 or not. Please advice me how to overcome. Feeling so tired to stomach pain n gastric issue