I went through a similar experience at a similar time in my diving. Right around 75 dives or so, I had panic attacks creep in to my diving. I think most of these were the result of mentally forecasting a bad experience based upon some trigger (real or imagined). The results were rapid breathing coupled with a voice in the back of my head telling me to get to the surface. I had multiple drag out fights at 60 feet with myself. I do not think that any bad experience (like yours) trigger the attacks, just an accumulation of worries. Some of the times, there would be something that started the chain reaction- e.g. I would need less air in my BC to get buoyant at depth and I would envision problems with popping up at the end of the dive. Other times, something as simple as my trim being off would start the chain. A couple of times, the initial trigger was narcosis. One thing that feed into the chain reaction was not wanting to disappoint other divers.
Getting through it really came down to comfort level, which took some time along with an increase in skill level and additional preparation. I focused on what I like about diving, implemented better planning, concentrated on the fundamentals, and learned more about DCS and computers than taught in OW. Also, giving myself something to do on a dive (taking pictures) seemed to help a lot. Identifying what is going on mentally was a big thing - figuring out each trigger and then dealing said trigger (preferably prior to the dive). Some practical steps I implemented are: carrying a pony bottle (even though I have never needed it), using two computers, and switching to nitrox (less worry about NDLs on my typical dives). Being more open with the people that I dive with also helped a lot.
Good luck with this - for me it was a process.
Getting through it really came down to comfort level, which took some time along with an increase in skill level and additional preparation. I focused on what I like about diving, implemented better planning, concentrated on the fundamentals, and learned more about DCS and computers than taught in OW. Also, giving myself something to do on a dive (taking pictures) seemed to help a lot. Identifying what is going on mentally was a big thing - figuring out each trigger and then dealing said trigger (preferably prior to the dive). Some practical steps I implemented are: carrying a pony bottle (even though I have never needed it), using two computers, and switching to nitrox (less worry about NDLs on my typical dives). Being more open with the people that I dive with also helped a lot.
Good luck with this - for me it was a process.