im 15 years old

1. for the last 2 days or so, i've been feeling like i can't think clearly. Last night, i almost felt like i completely got lost somewhere for a few seconds, almost feeling like my brain may have shut off or something. When I was in the shower last night, i had thoughts about how i may be going mental o something, but i started thinking about something else and i started to feel better mentally. Today, my Dad is at work, but i couldn't really convince myself for some reason that my dad is at work. doctors have told me within the last 2 months or so that i have stress/panic attack related issues. Is this thing about my mental health dangerous? what can i do to get better

2. I've been notiing for like a month now that i'm starting to fee kinda scared when it's dark. Why is this happenening, and what can i do to make myself ffeel better?

3. I had my heart examined thoroughly on Thursday, as i went to a heart specialist and got ultrasound (i;m prety sure it was ultrasound) and another test done where they examined everything i my heart. everything turned out to be good. My doctor later asked me questions about my heart later, and he said everything is good. However, i forgot to tell him like 3 things about my heart: there's some type of sound in my chest/heart sometimes although not often (also happen when i yawn sometimes), heart stopping for a second, and how in the past i've woken up at night with a weird feeling in the heart, like my heart is getting scared or something (the eeling when u get scared). Is this anything important, or is my heart fine?

It sounds like anxiety to me, not heart problems.

You probably need to see an endocrinologist as these things are usually hormone related.

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are any of these 3 things serious problems? also, am i actually gonna go crazy? One other thing I need to mention is that i've been starting to get a bit more angry recently

Go and see your doctor and if he cant find anything physically wrong it is probably panic attacks.

https://www.naturalnews.com/028452_an...c_attacks.html

i've made so many trips to the doctors over the last 2 months over many different health related issues and i dont even feel like going anymore, espcially since i was always get told that there's nothing serious and i will be fine lol. But i may have to go for this problem then.

one other thing i have to add is that when i go out in the cold weather and come back inside, i kinda feel like im gonna go crazy.