Hi, Ive had nightly congstion for over a month that turned into a post nasal drip for three days with sore throat. My mucus has been clear up to now. Im experiencing extreme nausea, congestion, sweating, and no fever. What should I do? I have graves disease but have been taken off metimozole due to normal levels. Is it ok to take a decongestant or could till be something that warrants a doctors visit. Fyi. my normal temp is 97.7 my current temp is 98.5 would that be considered a temperture for me?