One of the best people to help you answer this question is your spouse/partner.
People with apnoea have the following symptoms:
Loud, frequent and irregular snoring: The pattern of snoring is associated with episodes of silence that may last from 10 seconds to as long as a minute or more. The end of an apnoea episode is often associated with loud snores, gasps, moans and mumblings. Not everyone who snores has apnoea, by any means, and not everyone with apnoea necessarily snores (though most do). This is probably the best and most obvious indicator.
Witnessed Apnoea: Your spouse/partner indicates that you periodically stop breathing or appear to be choking during your sleep, or gasp for breath.
Excessive daytime sleepiness: Falling asleep when you don’t intend to. This could be almost any time you are sitting down, such as during a lecture, while watching TV, while sitting at a desk, and even when driving a car. You may have sleep apnoea or another sleep disorder. Even if you don’t literally fall asleep, excessive fatigue/tiredness could be a positive indicator.
Body movements often accompany the awakenings at the end of each apnoea episode, and this, together with the loud snoring, will disrupt the spouse/partner’s sleep and often cause them to move to a separate bed or room.
Forgetfulness, that is, affecting the short term memory also a difficulty in concentrating, focusing and completing repetitive tasks. Bouts of irritability and depression are common. If working, a disimprovement in performance over a period of time.
Would I not be aware of all these symptoms myself? Probably not. Most people with sleep apnoea do not realise that they are awakening to breathe many times during the night. The arousal is slight, and people become accustomed to this, but it is enough to disrupt the pattern of sleep so that they get very little deep sleep or REM sleep and awaken feeling sleepy. A great many apnoea sufferers go through a large part (or ALL) of their lives unaware of their condition. Likewise regarding daytime sleepiness, people with apnoea are often not aware of felling tired or unusually sleepy. The disorder develops over a number of years, and they are not aware of the increasing symptoms and believe they feel “normal”. Only after treatment do they realise how much more alert and energetic “normal” feels!