Hello! Welcome to the board
I think what you are asking is if Discoid Lupus and Systemic Lupus (organ involvement) are the same? The answer is no. Usually people with Discoid Lupus only have the skin affected by it. There are some people that can go on to develop Systemic Lupus though! I would check back with your doctor if your symptoms continue. Also, if you are on prednisone pills then they can cause you to gain weight too. The fatigue could be from other causes. Take care!!