I think it's healthy to be curious, however it's extremely unhealthy to self diagnosed based on a checklist online. It took me about 6 months to deal with my diagnosis, mostly because I was going through a rough patch with my trauma and also because I was in denial of such (4 years later I kind of still despise my PTSD). At least to me was extremely difficult to admit and identify these things.

The best thing to do would be to submit yourself to evaluation. Worst case scenario you do have such diagnosis and from there you evaluate how it affects your everyday life, if it does at all.