Can I sue my landlord over a gas leak?

Question Details:

I found out 2 days ago that there has been a gas leak in the house I have been renting for four months, found out from the gas company. My family and I have suffered health problems due to what we now know was carbon monoxide poisoning. When I addressed the issue with my landlord, he told us we should just look for another place to live. I spent all my money to move here from fort worth to be closer to my job, and because of illness and lost wages, I can not afford to move. I would like to file a lawsuit against him. Is this possible? Important Notice