Can lupus be misdiagnosed by a doctor? Because doctor diagnosed me as lupus last year under ITP. My platlet count was low. It shown as 7. Thought it was dengue but the result came out negative. Ive been warded for 3 weeks not knowing what makes my platlet count drop. And then the doctor diagnosed me with SLE. But sometimes i forgot to eat my medicine and no flare coming at all. None. Do i really have SLE? Sorry for my bad english.