The price of hamburgers, the amount of food stamps issued and resignation letters may be good indicators about the health of the U.S. economy. Nicholas Colas, Chief Market Strategist at Convergex, says the government inflation number may be low, but prices for everyday goods like bacon and cheeseburgers jumped in Q1. He's also concerned that more than 46 million Americans are still on food stamps. But, there were some bright spots in the economy, including healthy auto inventories and strong sales of pickup trucks. Additionally, a high percentage of people who left their jobs in the first quarter did so because they had another job to go to. Colas tells TheStreet's Rhonda Schaffler he sees Q1 growth of zero to 1 percent.