Hello Jul~I am sorry that you are suffering so from anxiety, I experience it too as well as the full blown panic attack, I know they are no fun.
You said they were getting worse? Are you under any extra stresses lately?
As to what to take, well, a good, food grade multi-vitamin and mineral is a good start. Make sure also, that you get a good amount of the "B" vitamin, this is the "nerve" vitamin, and without enough, you will have all kinds of anxiety, etc.