I saw Selena Gomes talk about her lupus symptoms she didn't want to leave bed she was always tired. That like me I'm really scared I have it?

I start to shake inside when I stand up & walk but when I lay down it subsided but I can still feel it slightly in me. I'm 18 super scared?
I been feeling weak my period is due in 13 days I also have all the symptoms of lupus like many… Lymph nodes, sensitive to light, joint aches, shortness of breath, confused, off balance, dizzy, petechiae, rashes at times like on my chest or stomach, very tired all the time at times it subsideds, anxiety, Sometimes get a numb, tingly feeling in legs and hands. When I wake up, or sit for more than a few minutes, my ankles get very stiff and it becomes hard to walk. I get depressed easily too. Etc., it comes in episodes all this. I have no family history of lupus I spoke to a family member that's gifted she feels no illness for me but deficiency but she still told me to go to the doctors. I been taking smarty pants adult vitamins for 2 or more weeks and for a week I been take magnesium. I been laying down a lot because I can't stand up for long or I get to feel very faint also I'm on my iphone 24/7 my sleep pattern is very off. I get very sick feeling mainly 2 weeks before my period like I'll get my period is feel sick until my next one comes… When that one comes then I feel slightly better

Your worried and stressed over something you don't even have

Go to a doctor instead of spending your time worrying about it.