Borax and bloody nose

Hi!

I've been using 20 Mule Team Borax along with the Iodine protocol. For the past 3 months I've used 1/4 tsp per 2 quarts water. All was well and I felt an increase in my libido for sure. I took a small break from it and then started up again at 1/4 tsp/2 quarts water. This resulted in severely dry sinuses and random bloody noses. I stopped the borax, the nasal issues went away. Started borax, it came back.

I then tried only 1/8 tsp per 2 quarts, and same dry sinus and bloody nose. How can this be? It's such a small dose.

Any thoughts? I want to start back again, but can't handle the random nose issues.