Hello I Am A 35 Year Old Female. I Have

Hello I am a 35 year old female. i have been diognosed with lupus for the last three years. I also have some other medical issues. I have had my gallbladder removed and since that I can't eat because it hurts I have been prescribed the following medications. oxycodone 20mg, Rabeprazole 20mg,Temazepam because I cannot sleep since I had a child who is now 4 and clonazepam. I do not take anything other then what i am prescribed, I don't drink or do any type of drugs and I never had. I done a urine test last week and it showed positive for cocaine. There is not way possible that it could be in my system, I don't do it and I don't be around any drugs. Like I said I am 35 and my entire life I have never taken any medication only since this lupus turned my life upside down. Friday past I did another urine test which i don't mind doing because I don't have anything to hide and by doing urine tests the doctors have found that there was blood in my urine so I am more then happy. So here I am, a woman with a professional career, a beautiful 4 year old who is what makes me want to fight this unknown disease and the likes of this to show is my system. I don't go anywhere except to my mother who has cancer and is gettting treatments now. I was also put on to Antibiotics for my stomach as well. Of course know I didn't use the drug so I done research and I was blown away by some stories I have read hear. Is there anything you can tell me or suggest...I am assuming that the last urine test will test positive for cocain as well according to what I have been readying reguarding antibiotics.