Glad you decided to share your symptom with us . . . I am not a med professional so I cannot tell you anything but from personal experience . . . some of your symptoms are familiar to me . . . .when I experience a panic attack (very rare nowadays, thank goodness) or an anxiety episode, every muscle in my body feels as if it is pressuring every nerve ending that I own but I am wondering about the timing of your first panic attack and that it coincided with eating a weed brownie . . . .do you do marijuana on a regular basis? Did the brownie come from a trusted source because not all marijuana is created equal and if there were additives, then these additives or the strength of the marijuana could have had an influence on your physiologically and psychologically. There is some research that appears to support that marijuana intake, for some people depending on the person, etc., may aggravate and/or cause panic and anxiety . . . . because you say that it is not uncommon for you to have one or two symptoms daily, then perhaps this use of marijuana brought your anxiety to a peak . . . .
My suggestions is to visit a medical doctor as soon as possible. Tell the person at the medical office that you need to see the doctor immediately and describe your symptoms especially the lack of balance and the numbness if you are still having the symptoms. If these symptoms return, go to the ER. I know some of my colleagues may feel that this will only feed the anxiety, but you appear to have had these symptoms for a while. Based on the results, if all is clear, then ask for a referral to a trained counselor who will help you to develop management strategies and guide you to identifying, if possible, root causes and triggers for your anxiety. In the meantime, you may want to cease using marijuana, especially if you do not know the source and how it got to you, and see if that helps re-stabilize yourself . . . . I would also suggest keeping a log of when these episodes occur to see if there is a pattern . . .
It is scary to experience symptoms for the first time . . . I even get scared when I experience symptoms that are common to my anxiety because that is how anxiety works . . . but rather than sit and wonder, check it out . . . . and please come here as often as you can . . .we will do our best to support you . . .take care, kc