I’m not discouraging at home novelty tests like ancestry and 23andme, I’m discouraging their use in the situation you’ve described, because that’s not what they’re intended for. I’m very sorry for your situation, and I hope that you find the information that you’re looking for, but you’re more likely to find it with actual paternity tests than trying to glean information from a test that’s not meant for that.

As for the medical comments, ancestry isn’t meant to provide that. It’s not actually sequencing the DNA, it’s just checking for specific sections of DNA that are known to vary between different ethnicities. Some health information can be assessed in that way, but its inclusion in at-home tests was made illegal because those sorts of results need to be handled with a genetics professional so that they can explain the complex results and their impact on the individual and their family. Some at-home tests have added medical information back in, but that’s legally dubious, and considered to be dangerous by genetics professionals.

If there are any medical concerns, a different DNA test should be used, and should be ordered by a genetic counselor or geneticist. Situations like these are one of the reasons why genetic counselors exist - please don’t believe that adding a medical professional to the mix is a bad thing - genetics is a very complex topic, and having someone trained to understand and explain it is invaluable. Please let them help you in your endeavor.