I am getting each time If I feel low energy. I have tested 6,12,18 weeks hiv fourth generation test non reactive, hepatitis b and c non reactive after 4 months of exposure, vdrl non reactive after four months of exposure. I am I conclusive or not. Each time I feel low energy or symptoms like swollen tongue with sticky mouth with foamy saliva, white tongue if I didn't drink more water. I am thinking about std. I am free from std or not .please help me to for get this incident. Still can we suspect any std like hiv, hepatitis,some other. Still I need to test further or not? Does any one who tested negative @ 4 months mark after that rested positive .please help in all special conditions how it looks like all 4 months testing nonreactive including hiv 1&2 ag and ab test, hbsag,anti hcv, vdrl non reactive all tested @ 4 months mark.