Like so many of you I share this too! Never had anything like this before & I keep saying I was not like this before Covid. I had Covid once in January 2021.
Mine is 99.9% at night. I have not paid attention to if it has anything to do with eating or not. Guess I will keep an eye out for that. When I go to sleep I will wake up with one nostril stopped up and a big wad of phlegm in my throat. I clear my throat constantly and drink tons of water to try & wash it down. I fall back asleep laying on my other side and then that side gets stopped up. Some nights are worse than others. I have not found any connections other than Covid. At one point last year in May my sinuses were so stopped up I couldn't breath out my nose at all. My primary sent me to an ENT. He sent me for a ct scan and I had a bad sinus infection. Put me on heavy antibiotics and he said I had a deviated septum and recommend surgery. I'm not interested in that surgery. He prescribed me to take Montelukast once during the morning and Zyzal 1 tablet at night and a nasal spray. I did this for a little over a year and it helped was not as bad but never went away. The long term effects of these can cause issues so I stopped taking them. I want to permanent get rid of this . Any info is appreciated.
Ugh😞