Period pain. Any abdomen specialist 0!

My sis is 13yrold she got periods after 2mths..and the flow was not so hvy compared to last mths..on d 1st day of periods she got a vry bad pain in her stomach lower abdomen also she felt dizzy and vomitted little cough her legs was also paining aftr gvng heatpads her pain bcmes f9 &nt der during d day.on 2nday morn she agn got a vry bad pain instomach wid no other symptoms Aftr heat pads hr pain gt settled during day den on 3rd morn she gt pain and settled during d day same fr 4th and 5th day.den our family physician suggstd hr meftil spas and zinetac nd den frm 6th day her pain becomess kkk.nd also hr flow like other months den vry minior pain in stomach jst fr 2 to 3 minutes frm 6th day my doc said its nthing serious bt still concerbed does she need any abdomen specialist 0