Talk to Internal Medicine on Positive ANA, Different Symptoms

I've had many infections over the past two months. Starting from " Throat Infection, Uterus Infection, Urinary Tract Infection" Went to a medicine specialist, she said I might have Rheumatoid Arthiritis, Went to another medince specialist, He gave me following tests: TSH Profile, Anti ds DNA, CPK, Urine Culture. Month ago, I had fatigue, swollen feet, infected throat. Now. Currently, I'm feeling extreme fatigue with a lot of nausea. on and off pain in my liver. What I want to ask is, Is there anything serious? should I be worried. Or just patiently wait for the test results. Also he said I should get these tests from Shaukat Khanum. Can I get it done from, excel labs as SK is very expensive.