By Michael Tutton Sandra Walsh was struggling to breathe in her apartment when temperatures across Nova Scotia soared in July, but the woman on social assistance says her pleas for a government-funded air conditioner have been ignored. “With the high humidity, it effects my breathing and I have to gasp for air,” says the 46-year-old woman, recently diagnosed with a progressive lung disease. “Even taking frequent, cold showers isn’t really helping.” The resident of New Glasgow, N.S., is among many low-income Canadians with health conditions struggling to get government help to stay cool. She wants to buy a $300 air conditioner, but that would leave her with little money for food or medications. As of Wednesday, Walsh said it had been more than two months since she asked her income…