A San Diego woman claims the U.S. Navy is putting her life at risk by not properly examining an issue that could cause her heart to stop.At first, Susanne Reedy believed her pacemaker was acting up. Now, every time she tries to open her car door, she said her heart can literally skip a beat."That's frightening because my life depends on this," said Reedy.Born with a congenital heart defect, Reedy has had a pacemaker for 15 years with few problems.However, six months ago, she began suffering episodes of irregular heartbeat during some trips to the Hillcrest area, where she works as a hospital technician."I would get winded. It felt like my heart was pounding sideways," Reedy told 10News.Last week, she got winded and her heart started to flutter. She went to her car and could not unlock it with the remote.Reedy said each time she experienced the symptoms, her car remote was not working. A review of her doctor's appointments showed during her last two visits, other remotes in San Diego were not working properly.In April and late July of this year, 10News reported on widespread remote failures from Point Loma to La Jolla. The manufacturers blamed it on Navy ships, but the Navy did not take responsibility. But Navy officials said many military bases often use the same frequency range as some consumer devices."Furious. That makes me angry. I just want the Navy to stop doing this; that's it," said Reedy.The pacemaker company confirmed they have received several complaints, and they said they could not rule out widespread interference hampering pacemakers.The problems could leave Reedy vulnerable to a stroke or worse."It gives us a big 'what if,'" said Reedy.In a statement, Navy officials said: "We empathize with neighbors We don't know what's causing any local interference. The Navy continues to operate within the mandated radio communications band."