"My sinuses and constipation have been bad for as long as I can remember; and that's several decades."
Sinus problems are almost always fungus overgrowth. Even the Mayo Clinic says that. If you have fungus appearing on the outside of your body or causing you problems in a specific area, you can bet you're dealing with a fungal overgrowth throughout your system. Time to call in the anti-fungals!!
Constipation is quite easy to 'fix'. Take some good probiotics and re-establish your gut terrain, alkalize your body, eat whole healthy foods, take extra fiber and lots of pure water. Add mineralized salt to your diet. For quicker relief, you can also add a pinch of Epson salt to meals. Get some exercise every day.