Hit by train. Lost everything

I was doing the mission “lets build a robot army” and for some reason, I wondered if the train would kill me. It didnt kill me, instead I was trapped underneath it and when I came out, my inventory was empty and all my weapons were unequipped and lost as well. Now I am a level 46 wilhelm in tru vault hunter mode who has nothing but a little money and some moonstones. Anybody else go through this? Any ideas on how to fix?