Should i stop using that???does it gonna effect my vagina???

I have been using nevia Roll on frm the last few months while I mustardate(its sound crazy ikr but its the perfect thing i found because of its tip).I have seen a change as it make my viginal hole enlarge or stretch abit..I'm confused .did I loose my hymen(but I haven't found me bleeding when I mustarbate)but sometimes my lower abdomen hurts.am I still Virgin ,???? does it gonna effect my body???