i dont want to bother you all and ask you a million questions its just im so confused and scared and i really need your help and i apprecaite you so much honestly. so i am 19 years old (male) and about a year ago i had my first ever panic attack. iv always been a stresser and an overthinker but i never thought that it would actually come to me having a panic attack. im a big control freak i like things in my life to work on my time otherwise i become very stressed :( im now a year later from the this panic attack but i keep having moments where i feel strange,anxious and my brain feels what i would call foggy i dont like to use thr word depressed because i know there is bery depressed people who are suffering but i keep having little moments where im feeling down and then other moments where i feel completely free from feeling down and anxious.  from what i think i might have anxiety but i havent seen a therapist yet my sessions start on monday i have gone doctors and had myself looked at multiple times and they have said i am healthy. iv had ecgs,blood tests ans ct scans but they said im fine and im okay. i spoke to a women who said i suffer from health anxiety. but what iv been trying to figure out is if health anxiety can also cause just normal anxiety  and feelings of feeling down or does health anxiety mean im just worrying about my health and nothing els? i have never been depressed before but lately i have been feeling up and down.i am very new to anxiety and its kind of ruining my life atm. i keep looking for answers and its driving me crazy. i have had so many hospital trips because i keep going into these panic and anxious states. i was with my mates smoking weed about a year ago and all of a sudden my brain went completely lightheaded almost like something was very very wrong. my heart rate went through the roof and my legs was extremely shakey and i was screaming to my mate that something is wrong and i need an ambulance. i never ended up calling an ambulance because they talked me out of it and said no dont do it your fine.  i calmed down but after the attack stopped i continued to feel on edge and anxious all the way until i went to bed. my worry is that i had a problem with my heart that im not aware of. but i didnt experiance any heart attack symtoms such as pain in jaw or my neck or my chest or my arms but i did however feel very scared and panic almost like something was seriously wrong and like something very bad was about to happen. and im so scared because common symptoms of a panic or anxiety attack is feeling of pressure or pain in the chest but i for what i remember i did not experiance any pains in my chest at all my main symptoms was just this feeling like i was dying and i felt extremely dizzy and faint. and my main worry for me was this out of nowhere all of a sudden feeling of fear and blankness that i felt in my head it was almost like someone had put the lightswitch off in my brain, it felt like my brain was about to switch off. do you have any idea what that feeling of worry/fear/blankness/dizzyness/doom that felt in my head? im so obsessed about my heart rate, is it normal for my heart rate to go up everytime that i feel anxious. because everytime i feel anxious ny heart rate goes up but yhis is EVERYTIME is this normal guyss? and everytime. iv tried doing some research and dr google has told me that when you experiance a panic attack you go into whats called the flight or fight response. could this be the weird feeling that i felt in my brain?. it all happend so fast and out of no where. i was sitting there playing my ps4 with my mates and BANG my whole world came crashing down, there was no build up from what i can remember. i will come clean and admit we was all smoking weed i no longer smoke weed i quit over a year ago when the panic happened i said im done forever. it was like my brain was about to switch off, my heart was racing and i could feel this feeling of fear and panic all through my body. i cant remeber if this was before or after my panic attack but i had to witness my best mate have a seizure and it was the scariest thing iv ever had to deal with in my life. i called an ambulance and thank god he came out of the hospital fine. i try to not think about it anymore and i didnt want to consider this but is it possible that i could have slight pstd? and if so is it normal for ptsd to affect you months later even if you feel or think you are over it?. i spoke to a therapist on the phone for about 20 minits the other day it was only a quick session to get to know eachother and he told me that i may have pstd. im sorry that iv written so much but this has been my life for over a year now and its very dibilating and i feel lost and hopeless. thank you all i love you all