What Causes Severe Anxiety And Panic Attacks?

Yes. I feel very strange. I have many wierd sysmtoms that don t necessarily go together. I ve been having this problem for a little more than a year, with some systems staying all the time & others being way worse & those come & go. I ve been bounced around & feel as if I m loosing my mind. Literally!! I ve found that in the worse sysmtoms I can t function mentally, (cognitively?) & can t see, I think about all I need to do, but don t move, like im stuck. Sit with intense anxiety teeth clinched, sometimes clinced onto my arm still, feeling nauseated, & nervous, sitting on edge of couch like everything is not real. I try to shake it off & do something then I find myself staring in the pantry for an hour or the mirror or at clothes cause I can t make a decision & get dressed or take a shower. Whatever I try to do during these times takes a long time. Thinbs get scattered around & left & then I think wth? Cause im usualy full of energy can multi take & OCD like. I m having a panic attack without having a panic attack. My head feels like its full. I f i try to drive or go somewhere I feel even more confused & sometimes scared of whatsgoing on. I mean it could take me 2 hour just to grab one thing from a little store. The wierd thing is when this is happening my pain level is down, or masked seems like (Which is pretty up there usually depending on activity) from other problems I have.