6-7 cocktails in a really short amount of time.. i’m still feeling horrible

First time posting in this thread but I really wanted some opinions. Basically, about 3 weeks ago I went out drinking with a friend. I had 6-7 cocktails in a really short amount of time. I’m an inexperienced drinker and admittedly didn’t know how much alcohol was really in a cocktail. I came back home with insane tachycardia, elevated BP, and was hyperventilating. Did not pace myself or hydrate enough inbetween so all of those drinks hit me at once. I toughed it out that night but have gone to the ER twice since. I had horrible chest pain and could not breathe right for the first week. Tightness went away but chest still feels weird 3 weeks later. I also now get panic attacks and I’ve never gotten panic attacks in my life. Also have trouble sleeping. I’ve done a lot of research and some articles state to wait it out for a bit longer and my symptoms should subside. I’m obviously never drinking ever again. Just want to hear other people’s experiences with over drinking. Did it mess you up this bad as well? Thanks in advance.