Hello, Isis.
My first post on this forum, but when I hear 'panic attack' I immediately think Saturn-Neptune. You have your Capricorn Sun, and to a lesser extent your Mercury, conjunct the Saturn-Neptune midpoint.
Saturn and Neptune can be a difficult energy - trying to nail something down that by definition can't be defined!
I haven't looked at what might be going on right this minutre, but earlier in the year Pluto was close to your Saturn-Neptune midpoint - indeed it was close to a conjunction with your Sun. Soon Pluto will return to this position.
So, if you want to understand your panic attacks it MIGHT be a good idea to look at your Saturn-Neptune midpoint, and the fact that you've got the Sun and Mercury here.
Given the fact that you've got the Sun so close to your Descendant, you should, in my opinion, consider the impact that other people are having on you. Perhaps you're picking up their feelings, and their insecurities? And while your panic attacks are going on, I would suggest that you give youself a secure environment, and that you surround yourself with secure and uncomplicated people.
To take things a step further, the Moon, via a 45 degree aspect, is also connected - it's 45 degrees from the Saturn-Neptune midpoint, and we have the following 45 degree midpoint tree:
SO/AS=MO=ME/AS=MA/PL=SA/NE=SO=SO/ME=ME
So your wide Mars-Pluto conjunction is being brought in, which is of course square to your Moon.
I don't know how popular midpoints are at the moment, but I think they do need to be considered.