Should I go ?

So that last two months my period has been 18 day cycle and this time 15. Day cycle . First day of the 15 day on and I'm very naseous to the point I have vomited . Cramps aren't terrible but I am very bloated and overall not feeling great. I can't go to doctor until the next couple days but I have the emergency is close by. I feel something is not right ... Should I go ?