Hi Kenjie, This GI issue going on is problematic. Most Medical professionals agree that the imbalances in GI flora alone can cause numerous issues to occur and that Probiotics are one of the safest and most effective ways for you to maintain this balance and many recommend it as part of a regular dietary regimen for overall GI health and avoid or possibly resolve conditions such as SIBO with Plantarum species of probiotic among others. Personally I take a Wide Spectrum Probiotic that includes Plantarum all the time. I feel better and I have resolved my Nausea and my personally tested leaky gut issues using that Probiotic and Digestive Enzymes, both OTC(over the counter).
People take antacids and acid blockers for GI and they both have a lot of possible detriments. Antacids wipe out healthy flora for instance in your GI tract. I say that for the benefit of many.
I had also found that I had low stomach acid production through another personal test. Undigested food with needed nutrients.
If your GI tract has permeability issues (like Leaky Gut Syd.) and some of your vital nutrients are not fully digested they can be interpreted in your system as foreign bodies that can potentially set off triggers in your immune system as soon as they pass through that begin waves of inflammation and if that response is large enough you will VOMIT as a built in defense mechanism for the body to rid itself of the problem. There is known to be a very strong connection between the GI tract and the Brain, that is how you realize you have Nausea and are queezy. I found that to increase dizzy symptoms that were already there but brought them to an awareness level.
Now I'm not saying that Probiotics are the best way to deal with SIBO or Candida species of Yeast. Because of the many implications that Antibiotics cause in the body but I would try PB first, that is just me. I just don't feel comfortable with AB's and as a personal rule of thumb, I avoid them, that's right I just avoid them, and if you study you will find out why, that is for another time. There are other options out there for Discovery.
Now for Candida; Candida is a natural species of Yeast in all of our bodies but its peculiarities effect women more. When numbers of this species of yeast become too large they cause Medically diagnosable conditions, apparent. I posted to give you a range reference for the conditions that may fit. All I know is you say you have been Dx for Thrush and have a range of SXs and if so you may still have Candida raising havoc.
The only other offering that I have for now is that the Proboulardi species of Probiotics are known to drive back numbers of Candida and get them down to a level of balance. And trying them can improve your GI health without harm gently, I don't know about clearing your nasal area though if that be the case but somebody mentioned nasal saline to assist and I like that. Another measure then may be in order and I believe there are many w/o medical intervention that are safe. Whatever you do please come back and share your findings so that we may all continue in this conversation to learn and thrive in good health.
And if I inadvertently stepped on anybody's toes I am truly sorry!