Hi I did review your concern You may be having symptoms of viral rhinosinusitis where nose and ear tube gets blocked and resultant fluid can get accumulated. It occurs due to variety of virus and most important thing to remember is that no antibiotic is useful except for oseltamavir in cases of influenza virus infection which occurs as an epidemic.It causes more systemic complaints like bodyache, muscle ache. Your symptoms can be due to more of other virus like rhinovirus that causes more of coryza. Best is to drink water, keep hydrated, take levocetrizine at night if nose blocks a lot and use vicks vapourab with steam inhalation to clear nose block. If the discharge gets thick and yellow it indicates bacterial infection on viral infection and then antibiotics are needed but not now. you will eventually clear the viral cold away by your immunity.just eat healthy food and keep healthy habits that you have been doing. I hope this helps. Let me know if you have any more questions or concerns. Wish you healthy and happy life ahead.