What triggers random anxiety and panic attacks when nothing is going on?

I believe random anxiety and panic attacks get triggered when you are not occupied with something. For example If you drive a vehicle and not steer it, it will go out of course, so similarly with our brains, we have to keep ourselves occupied to prevent unnecessary thinking.

Panic attacks are complex! In general, they are caused by stress, fear, and anxiety. However, they can occur under situations where you do not feel anxious or afraid! For one, physical activity and drugs that increase the activity of your autonomic nervous system can trigger panic attacks. For example, if you go to the gym and exert yourself a lot, your heart rate kicks up and your breathing accelerates. This can bring about a panic attack, especially once you have become overly sensitive to those sensations. Drugs like caffeine can have a similar effect on your body; they increase your heart rate and can bring you to an altered state of mind similar to that of exertion. The bottom line is that if you have a history of panic attacks, you will be hypersensitive to anything that increases your heart rate, changes your mental sharpness, causes stomach discomfort, etc.

For me, when nothing is going on, my anxiety tends to be triggered by my thoughts and the things that go through my mind, whether it be something I'm stressed about or a memory that makes me upset. Actually, anxiety for me tends to be heightened when nothing is going on because the absence of a distraction gives my mind more freedom and time to think and wander, which eventually leads to anxiety and in some cases an anxiety attack.

For me, it's the thought that I've missed something. I may feel like nothing is going on, that I have it all under control, but then I might get the sneaky feeling that I missed something I desperately needed to get done, and start feeling anxious again.

If there doesn't seem to be any cause for being anxious or on edge (i.e. a big crowd you have to speak in front of, or a bear in your backyard) then the anxiety and panic COULD (not certainly) be caused by Generalized Anxiety Disorder. If you can't seem to identify what the worry is, and have trouble concentrating, and falling/staying asleep, talk to a professional for their opinion. Don't self-diagnose.

Random anxiety can be brought on by a number of things that we may or may not be acknowledging consciously. I call it the "snowball effect" when all the small stressors roll together and become a large one that can be overwhelming. This can be the cause of anxiety and panic attacks as well as other things.

There may not be anything going on at the moment, but instead there may be some thoughts that trigger these anxiety or panic attacks.

Sometimes it's your subconscious mind acting up - it may sense danger that isn't there, or feel uneasy about this environment. Try keeping a mood journal that details your emotional journey, this way you can manage and understand your condition.

I think a fear that things are too peaceful at the moment and the worry that something will come in and disrupt that can cause anxiety even when it seems like nothing is going on.

Anxiety/panic attacks are due to chemical imbalance in brain. In that case, even minor stressors are causing you to feel severely stressed. You shouldn't feel guilty about having them, but you should learn to manage your anxiety levels so you can live a better and more fulfilling life.

overthinking, socialising, nervous and afraid of judgements and embarassments, sometimes being too anxious about the surroundings

Well, often it might be the fear of having anxiety and panic attacks, though there might be many subconcious things happening that you might not notice are triggering.

Random anxiety can happen to anyone who suffers from panic attacks. I will suddenly get the feeling that I might have a panic attack at any moment. If this is a feeling you get, it's worth seeing a therapist or talking to someone on 7 Cups about your anxiety.

Yes. When that happens to me I focus on my breathing. My body is feeling stress and I just tell myself I'm having a panic attack. The sooner I recognize it, the easier it is to control

When someone is left alone or in a small room can cause panic attacks or anxiety. Or them waking up in the middle of the night.

Nothing really. I have had them before and most of the time I had no idea why. It was usually stress and worries that caused them though. A lot of stressing out and worrying was the main cause for panic attacks.

There's something all the stiuations (where nothing is going on) that is present, maybe it's a trgger you've never noticed but it's there in all those cases (it could be something physical or something that you can't touch like a thought or an emotion/feeling)...it's just there...find it and you'll find out why.

There is something going on. There always is. You may not know it, just STOP take a breath, look at your surroundings and your thoughts. Label it. Tell yourself it will be okay because it will be.

Memories can trigger some attacks, those lingering traumatic experience. Even if you try to not think, it still comes back to you. So those can be some triggers.