What Causes Weight Loss,fever,muscle Aches And Joint Pains?

i came in contact with blood in phillipines since november had swollen glands, colds, flu, fevers, easy bruising, weight loss, pharayntitis, muscle aches n joint pains, mouth ulcers, georgraphical tongue, gum issues i have crohns disease in remission never caused these symptoms vitamin levels good and iron did hep b c n syphillis all negative could it be a coninfection that is taking me long to seroconvert or my weaker immune system i had a antigen / antibody test