What are the signs of sleep apnea, wife says i stop breathing sometimes when asleep also have woke gasping for air as well. also can this cause anxiet?

Sleep Clinic: Sleep apnea is dangerous, can lead to premature death. Your description surely sounds like you need to get to a sleep clinic for evaluation soon.

Sleep Apnea needs to: Be ruled out. Although some individuals with ptsd may wake up gasping and short of breath in the middle of a panic attack or flashback. A sleep study will help to differentiate between the two. Please see an sleep medicine specialist soon.