I have an invisible illness, after seeing more physicians that I can count. The conclusion appears to be some neurological issues with connective tissue problems which result in chronic pain and fatigue most likely caused by antibiotic I took 7 years as symptoms started right after my allergic reaction.
I got married after symptoms began. It was not easy but life doesn't stop. I'm still coming to terms and searching for something that works meds/supplements/physical therapy. However, I don't considered myself disabled even though this is quite limiting and I require more rest.
I think once one accepts your alignment and find ways of still being a member of the society, one will have a much better luck dating. I think the depression that these problems bring is just really hard to deal with and affects people around us.
The first mentions dating within the blind community, which would likely make things substantially easier on both parties.
I've seen enough weird parings and horrible people in relationships to feel quite comfortable with the statement "blind isn't a guaranteed deal-breaker". I do suspect the recency matters a lot - grief after loss can be all-consuming and take time to come to terms with.
Side note: My spouse is disabled, so I'm also quite comfortable with the concept of dating someone with a disability.