StockMarket Improvement - Warning may be a Bubble

Is This really a Bear Market Rally?, After almost 4 months of constant growth I have been noticed that the stock market is losing force turning it in a posible Bear Market. I go always for long and It makes me pretty worry. This almost 60% up tendency since march stem from stimulus and optimism, Government has injected much money to the economy, Banks, Insurance companies took advantage and has benefit with it, Furthermore, they used this injection (TARP) to trade rather than reduce its debt.