My question involves injury or loss that occurred in the state of: California

In January 2007 our furnace stopped working and our apartment filled with gas. I called the gas company and they red tagged the furnace as dangerous possible loss of life and turned off the gas line to the rooftop unit. The owner was informed and given an order to fix. Owner did nothing to remedy the heat and raised our rent the following month. We went without heat for 6 months..owner provided a very small room heater for a two story 3 bedroom unit.The rental unit inside teps where 52 degrees.

In June of 2007 the owner attempted to sell the building. The building failed escrow because my unit was still red tagged. The last week in June 2007 the furnace/ air conditioner was replaced and the gas to the rooftop was turned back on. No permit was filed with the city for the replacement of the furnace and the unit was not inspected.I was not aware the owner failed to file the necessary permit with our city.

In July 2007 my family started to feel ill..headache , nausea . We noticed a strange smell filled the house when we turned on the air conditioning. We where told it was the new unit and the smell would go away. By mid July I started to have loss of ballance , headache , muscle spasms, muscle twitching and memory loss. My Doctor sent me to a Rheumatologist. I saw the Rheumatologist several times and he put me on flexeril to stop the muscle twitching and very painful spasms. My Rheumatologist referred me to a Neurologist. For 3 months my life stopped.

September 30th 2007 the odor was still in the house. I started researching what might case the symptoms I was having and was surprised to find a gas leak in the home can cause all the symptom my family was having. I called the gas company and the furnace was red tagged again and the gas turned off to the rooftop..the gas line was cracked and shoved inside the air-conditioning forcing the gas into our home. No inspection was ever done on the unit. After the gas was turned off my condition improved. The vice grip headache was gone. The constant muscle spasms became less and the twitching improved and I was able to stop taking the muscle relaxer everyday. My balance got a little better ...still can not walk a straight line.

I have many letters written to the owner to please repair the problem ...I have the red tags ordering the owner to repair by the gas company. My gas bill for July , August & September are double because of the leak.
Do I have a case for personal injury?