Ugh. I have HORRIBLE sinus issues. They claim it's allergies, and been doing shots for a year... no much relief. Taking enough drugs to choke a horse, but I still get episodes where I can't stand it. Right now is one of them. My fibro is worse, too, and I wondered if the two are somehow connected. I get that spacy foggy feeling with a side of dizziness when things get real bad. Today, it's BAAAAAD. I guess this thread shows we aren't alone!
They gave me an additional antihistamine to take at times like this, but I pretty much am out for the count if I take it. You can't live like that, and I certainly can't keep my job that way.
I also rinse my sinuses, which does make them feel better at times, but doesn't seem to help overall. I do not do it on a daily basis, though, because I don't have enough time in my day.
Now my ENT is suggesting that I have undiagnosed food allergies, which may be causing the congestion. I might look into it, but I'm too tired from it all to care at the moment. lol.