You have what's called GAD or general anxiety disorder brought on by alcohol. For certain people alcohol can trigger an episode, and become a pattern of panic attacks. I know cause it happened to me in my early 20s as well. At this point you want to avoid drinking, and try to eliminate caffeine, at least temporarily as that will bring it on. Exercise is also a good way to reregulate your body to get it back into sync. Nicotine will also cause some issues as will wine particularly red wine. It can be scary when you feel it coming on, but it is non life threatening and only bothersome at best. Try to eat healthy, relax your moods thru yoga or meditation, and take some brisk walks to ease your stress levels.
Please know that you will not have a heart attack, or go insane, rather try to stay calm should you feel it coming on.
Take care
...Kim
It's a hangover. I know it *****. They can last a while to. Nothing u can really do just drinks a lot of water I have anxiety also so hangovers are the worst for me bc they also send me into alot of panic attacks bc I don't feel good. It shall pass gotta give it some time