I have chronic sinisitus, I can't seem to shake this problem, have been on antibiotics for whole months at a time and it seems to never go away. I always feel hot but no fever, I have thick drainage in the back of my throat always but havn't been having headaches lately however, very, very dizzy. Sometimes I can not get out of bed. This has just recently been a problem. Can sinisitus cause dizziness or should I be concerned it may be something else?