Hi. All I can do is offer advice. First, create a diary of all your doctor visits including contact information, and obtain copies of all your tests, you are entitled to them. Keep them all together, in order, and bring them to next doctor's appointments…the reason is some doctors are lazy and don't contact the last doctor or review last tests unless it's put infront of them. They get too busy, not that they don't care. This will avoid being re-tested for some stuff you don't need. One tidbit I learned was if you are low on potassium, please look at test results for that, you will get muscle twitches and nausia. And, if you take potassium you must take a magnesium with it or else the body won't absorb it. It took many doctors and scoping and damage to my esaphagas until one doctor finally said..you are low on potassium. Then another, after about a year to say…take magnesium with potassium to digest it. Wow. That took years to figure out. I finally learned to keep a diary of my doctor visits and tests after I was tested for Lyme's disease five times. Now, doctors need to benchmark ANA levels, and space them a couple months apart, that's standard. Now, holistically, you can help with brain fog by going gluten-free, and avoid processed food with chemicals. Try whole foods for a while, see if it makes a difference. Read every label. Two diets come to mind to try, the Keto diet and the LAC diet. Benchmark any improvements or failures with that in your medical diary. Some autoimmune diseases are drug-induced, or environmentally triggered with a heredity of a minor immune predisposition. So with that, taking daily multi-vitamin, extra vitamin C, D can help your body help itself. Immune disorders tend to suck vitamins out if your system faster than you can eat the foods that contain them. I buy the gummy versions of vitamins and call it 'my desert', lol. But please read tests about vitamin and electolite levels, if you don't see them, have next doctor get that done for you, and you can ask lab to send you a copy to your house, again, you are entitled to it. I will sit on-line and find out what every test means, again…I learned the hard way…sometimes waiting for doctor to do the job, it won't get done. You are lucky, you are young and your body can bounce back faster than someone who's older with the same issue. Have faith, you are not alone. Write down your concerns and questions and have them ready for your next doctor appointment, don't give up..and being your own advocate is the best thing you can do. Good luck!