Interesting, I had similar symptoms 5 years ago, including trouble swallowing which in itself induced a sort of panic. Also, I have experienced 6 "attacks" (not sure whether a panic attack is the right name) in two days, that felt like all my limbs were numb (with that tingling feeling you get when you keep your limb in an awkward position for too long) and tightly wrapped in duct tape, accompanied by rapid breathing, fast heart rate and dizzy vision. I wasn't diagnosed with anything specific and it went away on its own, but later the same year I started feeling occasional heart flutters as if my heart was going to jump out of my chest. Got tested and was diagnosed with a 2nd degree AV block. To this day, I have no idea what caused this and whether the two events were even related. Life can slap any one of us in the face in countless ways. Creatively vicious.
Glad your prognosis is quite good. Wishing you a fast and full recovery.
E.g. Multiple Sclerosis can very well fit what you're describing, too. Commonly, there's a flare-up (we commonly use the term "attack" funilly enough)of some neurological symptoms (numb limbs, tingliness, diziness, vision issues are very common) that can last a few days/weeks and then mostly or completely subsides (until the next time).
Absolutely not suggesting that's what it was, just that it is what it could be too (or many other things — auto-immune diseases in particular can be really broad and nasty).
Sushi, I'm so glad you're doing better. Some of what you said (including just writing about it for awareness and sharing) resonates with my MS experience. I'm sorry you've experienced this and I hope things will keep looking up! <3
Trouble swallowing, jaw pain, dizziness, double vision (and more) were all things I experienced as well. At one point, my left eye was dropping significantly.
Not to say you had or have what I have. The symptoms are very non-specific.