That sounds like you are allergic to something you took.  During an allergic reaction the body will try to counter the allergic response by releasing epinephrine (adrenaline) as an antihistamine and antileukotriene.  But the surge of epinephrine will also cause the jittery, anxious feeling.

You need to isolate things when you taken them so you can narrow down what you are reacting to.  in other words instead of taking a greens formula take herbs as individuals such as nettle or alfalfa.  This way if you react you will know what you are allergic to and what to avoid until you get your adrenals built up.

Whether or not you will have an allergic response to the bitters is impossible to say.  The only way to tell is to try it.  You will likely get a detox reaction when you start on bitters though.