That anxiety is rough... "waiting for the other shoe to drop", so to speak.
Time and rebuilding trust is important, and so is communication. Perhaps letting her know how much you enjoyed watching that lightning storm with her, how much you appreciated it, and realizing how much you could have lost and could possibly still lose?
Keep forging ahead and working on yourself. Things might not ever be "normal" like they were before, but there is hope that things can be really good. The key is to keep moving forward, and living authentically, whatever the outcome might be.
Best of luck. Keep at it.