Can anyone give an credible estimate of the net currency flow between bitcoins and conventional Forex market? (no investments in mining)

By all means be Bitcoin fan, but unless you can answer my question, you know nothing.

Every time the market sell side , the BTC value drops like a stone. Bitcoin has large market liquidity risk and Winklevoss brothers have liquidity problem. Bitcoin markets don't seem to have any resiliencey and breath. There are no controls for market manipulation.