Hello, I had a couple of ideas that are somewhat simplistic, but this is really where we should start:
#1 Houses need their ductwork cleaned out yearly, so do you have HVAC ducting in this house? If so, it needed to be cleaned out, especially after all the sanding of floors, and I'm wondering if this could be the root of the problem causing at least some of your symptoms, like dry, irritated eyes and nosebleeds. Even if you don't have ductwork, was the house cleaned from floor to ceiling to get the residual dust from sanding out of the house. Did you do the sanding and refinishing yourself; or a floor refinishing company? Were dust barriers used?
#2 Was the varnish that was used as the top coat on your floor for inside or outside use? This would be very important, and could be quite dangerous to your lungs, nasal passages if outdoor varnish was used inside. Same with the wall paint. Please double check those!
#3 The company who did the testing needs to give you a number for what is a safe reading on each of the things tested. You are not asking for recommendations, you are asking for what is considered a safe reading RANGE for each item. They should also be able to tell you possible household cause's (products) if you see the reading is high on your list. This is not a recommendation, this is an interpretation of what's safe. So, I would suggest you try calling them back and wording your request this way. Most people would never understand all those numbers that's on the results page! And I'm sure they received extensive training in order to read results from their tests. If you don't get the help/answers from that person that you need, then I'd ask to speak to a supervisor to get REAL answers, but be persistent. I'm sure that test wasn't cheap!
(Indoor paints are usually made with very low VOC's these days, so go back and check the products used.)