Tip tank:
I AM NOT A DOCTOR!
On reading your thread I identify with your symptoms in their intirety.
I have been diagnosed with mild RHINITUS(if thats spelt correct)
To get to this point I had quite a journey.
Up until 95 I had never experienced sinus.
Since then it has caused me considerable missery until recent time.
I spent bad money on a ENT that could not find anything, and this caused me to think all sorts of things, can be a rather dark place!
In desperation I went to another ENT(Incidentally a prodigy of the first)
He immediately shoved a small cable and camera up my nostrils! not as bad as you think.
He prescribed me BUTACORT 100 AQUEOUS nasal spray.
I use this night and morning, every day.
Told me to bye this product called "Nasal Rinse"
Basically it is a soft plastic bottle with a screwable cap/nozzle.
I was instructed to use a teaspoon off each 50/50 salt and baking soda, with luke warm boiled water, I have been doing this for about two years now, and use this procedure night and morning.
Try squirting it up a nostril gently, slightly sniff at the same time until you feel it run down the back of your throat, and exit out the back of the roof of your mouth.
It will take a week or so, and after doing this you will notice sometime later when you lower your head, your nose will run freely, ( have tissue's handy)
Also I have found that if I work about the house in a dusty enviroment( I am a joiner/cabinet maker by trade I am always doing something) I use a GOOD RUBBER FACE FITTING DUST MASK, if I don't I will suffer terribly with sinus issues, you have to remember to WASH the filter after use.
Dissposable paper dust masks just do not work, they are as useless as T-t's on a bull.
My advice to you is this:
Take some time off/ use personal/ family/ issues if you feel it is awkward to go sick.
But take the time, see a good ENT, suffer the hose up the nose (if you haven't already)
I stay out of Public Chlorine pools, they stuff me up quicker than anything.
As a from of fittnes I use to enjoy the gym, and swimming lengths, now I just Cycle, and use the gym.
I realise that not knowing what is going on with ones self when the experts can't Identify ( Well a good guy did more for me in five minutes than his master did over five F---ing years) the problem and it affects the way you live, to me it was becoming increasingly depressing, this effects everything else you use to do, want to do, and need to do.
Spend the money see another ENT if he has not done as mine did for me.
Realise I say all this from MY EXPERIENCE with I IDENTIFY STRONGLY WITH YOURS.
In saying this it is possible your diagnosis could be different to mine.
Let me know how you get on, but don't throw in the towel :
Chr's
H/Snort: