Lupus

I need advice my mother was told recently by her doctors that she has lupus and my question is that she and I have alot of the same problems I am a male and I know that lupus usually effects female's we have alot of the same problems such as little bumps or tiny blisters that pop up on hands and arms during any time in the sun also I have good days and bad days some days I have a whole lot of energy and other days I am really run down most times if I have a good day I will have two to three bad days. with little to no energy I also know that alot of this could have to to with my weight being as I am no lite weight I am a white male at 28yrs. old six foot one inch and weigh 290 lbs.I have alot of pain in my back hips legs and shoulders that I have always thought was just my weight problem. also get a lot of sinus infections am I freaking out for nothing I have not been to doctors because I really don't want to have to deal with something like lupus so early in life and also If one does have lupus is there any thing that can be done to stop the muscle and joint pains or is it something that will get progressively worse as I get older any help would be great.