HI Name Is April. I Have Ra (diagnosed A Year

HI name is April. I have Ra (diagnosed a year ago) I take meds for it. the last blood work up that my pcp did it should my thyroid level REALLY high. I am not meds for that. BUT recently when I get up to do normal stuff like laundry my heart starts beating like CRAZY, I start to feel dizzy, sweaty, and start to get a headache. I went to see the PCP earlier this week and she thought it might be some combo of drugs so she had me stop some of them She also did an EKG and it she was concerned about the QT/QTC intervals were mid line borderline long. I have to go back tomorrow, and I am going to tell her that it is not better. Should I be concerned?