i didn't actually have any endo symptoms, i do now though ! i had surgery to remove a large endometrioma plus they lasered off endo from other locations and i now get excrutiating ovulation pain, bad pain when i have AF and lots of bowel issues (i have it on my rectovaginal septum and uterosacral ligament which they were unable to remove - i only recently found this out, i thought they had got rid of everything !). sex is also pretty uncomfortable (which is making ttc again rather awkward)
i have heard of people getting amazingly different results second or third time around - if his second isn't much better it's probably waiting a month or so and retesting as it takes a while to make new sperm and it could just be that he was ill when the current batch were being created