Finner, first off, I am sorry this happened to you. Secondly, although I haven't had the same experience, I faced a similar fear returning to diving after a pretty good DCS hit and a 6 hour ride in a Chamber about 3 years ago. Given that I am someone who spent their entire summers in the water and a competitive swimmer for 15 years, it was quite unnerving. The fact that something seemingly so beautiful and relaxing could ultimately turn fatal. (I had great responses to a thread on here about 18 months ago here)
http://www.scubaboard.com/forums/basic-scuba-discussions/444799-noob-returning-diving-after-dcs.html
I agree with the first 3 of Bill T's advice 100%. I was in Thailand for vacation and decided to start re-start diving there, and pretty much did those suggestions. Hiring a DM as my buddy was the best thing I could have done. Marcia really helped me think rationally thru my fears and what I could do in the water to alleviate them. Plus, they are trained to look out for warning signs and to keep me from hurting myself and to relax while diving. Was it expensive? Yes, was it worth it? Absolutely.
Also, even though I was on a liveaboard, I only dived when I felt like it....I think I ended up doing 15 dives in a week instead of the 24+. I generally picked the easier/less deep sites and spaced them out. Also, I did a lot of snorkeling and spent more time with turtles than anyone diving. Was awesome!
I would recommend calling your dive op directly (or speaking with them immediately upon arrival) about your concerns. They can help you plan your dives to make sure you get maximum enjoyment on your trip. I think Maldives has a mix of more challenging and easier dives..so you can plan accordingly. Also, if you don't have one already, get a computer and use it religiously. At least for me, knowledge is power/comfort I use to calm my fears and to make sure I do everything I can when in the water to avoid a bad profile and to avoid DCS.
Being in good shape can help prevent/alleviate the impact of medical dive accidents. Read up on this forum on what type of physical activity you should be doing beforehand to prepare your body for your trip. There have been several good discussions on physical activity here. Get a physical by a dive doc before you go as well, if at all possible.
And if you really want to be thoughtful..read up on Cognitive Behavioral Therapy. It's a modality of psychiatric therapy that helps individuals overcome their destructive behaviors (like fear) by rationally thinking thru thoughts-actions-results. Helps you understand the root causes of the destructive behavior and the thoughts and deeds you can do to overcome them. Maybe more than needed, but who knows?
As a competitive diver in my youth, I cracked my head wide open...and after the stitches were out, I waited 9 months to dive again (it was the end of the season when the accident). That delay ended my diving career...too much time to think about it and I was too scared on the board to be a great diver again.
If you do want to eventually return to diving, do it slowly, recognize the fact that you are going to be scared, and move slowly to qwell those feels. It might take years (or it might take a week) but you are likely to overcome them...and may even become a better, more safety conscious diver because of it.
Good luck!