Two months ago, i had cold and flu. For which i took paracetamol and then when the fever went after 2 days the common cold and stuffy nose lasted for 3 weeks. Since then I have sometimes my both   nasal passages swollen and sometimes only one. I m having post nasal drip and when i swallow my mucuos down the throat, i hear a cracking sound in ears... And  whenever I eat anything my nose starts running..do i have allergy or sinusitis... Should i consult a doctor. The symptoms also increase more when I go in cold water like washing my feet with water...