That's the same thing that happened to me. The information comes from your DNA! You know what you know! I believe with all my heart that we have all the information, but we're afraid to know how we know, so we dismiss it.
But try this -(don't believe everything you think. just let the thoughts flow.) For example, for the life of me, I couldn't figure out how my grandpups understood what I was saying. Or any other non-human species for that matter, but today, I watched my grandpup Scott nose wiggle while I was speaking to him -- and do you know that little furbaby sniffs to understand my message? He can smell me, tell what I mean, and actually acts on it. So, there is intelligence in "knowing." through all our senses!
Most of the time, I feel the message or I put my finger on the answer.
I'm not special! We can all do this! Trust what you're feeling and be fluid with iit. The last part means to let the information flow in and out - don't be wedded to it. Just use it as you would when reporting a story. Don't fear correcting yourself later - information is fluid. The more open you are open to letting the information flow, the more the answers you need will come, and as they come, you can build on them and build your knowledge in any discipline.