I have quite yucky sinuses so every now and then I do a sinus rinse. Everytime I do one I develop a sinus infection which then travels to my chest and causes a chest infection. Does this happen to anyone else? It feels like whatevers up in my sinuses gets disturbed and then runs free! I thought it was just a coincidence the first 2 times but its happened again! It makes me feel quite poorly achy, tired etc.