iud with similar pregnancy symptoms

hey guys I have been on Skylar(3year IUD) for about 6bmonths or so everything was fine until about a month a a half ago stared with dizzyness nausea vomiting lightheadedness pelvic bloating pelvic pain....I took a pregnancy test and came out negative anyone else gone thru this I'm freaking out cuz what if it's a false negative ??