Why do I feel like this?

[bfjones420]

I thought I overdosed on cocaine in 2001 and went to the ER.  They put some IVs on me and released me a few hours later.  Ever since then I have had what they tell me is severe anxiety.  Somewhere along the line I started to feel a little better but didn't realize until I'd have another spell.  Prior to when I thought I overdosed, I lived a fun and fulfilling life.
I did cocaine a few times after I thought I had overdosed in 2001 and felt extreme anxiety for a couple weeks. Haven't done cocaine since 2003.  
I also felt this same way when my girlfriend broke up with me until we got back together, a little over a month.  
I also felt this way after taking one 10mg pill of adderall.  When I took this pill my body felt way over stimulated through out the day.  Not in a good way.  The day after I had extreme anxiety.  This time the extreme anxiety lasted about a month again. When I was younger I was on Ritalin and never got overly stimulated like that.
Never has the anxiety come on by itself for no apparent reason until about a week ago. I could actually feel it getting worse by the day. So for whatever reason I am freakin out day in and day out now.
My symtoms include pounding heart, lots of crying, whole body feels like it is trembling, very cold w/ occassional hot flashes, dizzy, extreme night sweats, difficulty sleeping and eating, can feel my heart beat throughout my body, I feel over-stimulated, but not in a good way, (eyes feel like they are buggin out, body is buzzing and get more talkative, and this is when I seem to get the heart palpitations), fidgety, lingering headache, chest pains other than the sinking heart feeling from anxiety, and feeling like I am going to die any second.  
It is all I can think about and when I force myself to come into work I am surfing the internet trying to find answers.  
I am currently taking 10mg of Paxil and 50mg of Attenolol once a day.  The reason I am on such a low dose of Paxil is because if I take more than that it seems that I get that overstimulated feeling.  I am also taking .5 of xanax every four hours until I can get through this.  The xanax seems to help, but very little.  I smoke marijuana daily and normally calms me down but when I get this extreme anxiety, it actually makes it worse.
I don't know what to do.  My psyciatrist has tried every ssri made, along with Buspirone, Neurontin, and Welbutrin.  I've had heart tests, brain scans, and everything seems to be normal there.
So I guess my main question is what can I do to make myself feel better??  Any other insight is much appreciated. My doctor says it's panic attacks but I have never heard of a panic attack lasting for a month or longer. I do have every symtom of a panic attack except for the hyperventilating.  I don't know how much longer I can go on feeling like this.  Something has to give.  Thanks in advance for your help.

[chriss22]

I agree with asking klonopin (clonazepam). I found it very effective and i had the exact same symptoms as you and was preoccupied with them day in and day out. I tried XANAX prior to clonazepam and it actually made my anxiety worse because it was too strong and doesnt stay in your system as long. As for the pot, I would highly recommend quiting as it will make your anxiety worse. You should also try modate exercise, eating and sleeping properly.

[caregiver222]

The ER treatment of choice for cocaine overdose is rectal massage. You insert your digit into the rectum and remove it rapidly. Preferably using a glove. This activates the vagal nerve and lowers the heartrate, reducing the possibility of ventricular fibrilation. "Ladies and gentleman of the jury..."

[tolerance]

i was a heavy coke user but now its jus every now and then. i know i shouldnt do it, but i still do it prob around 100$ once every two months. i kind of know the ins and outs but im not a physician, ive jus been in a lot of situations.

smoking marijuana while on cocaine or with cocaine is one of the most dangerous things you can do. it messes with you mentally by raising anxiety and heart rate and blood pressure. all those mental side effects puts soo much stress on you body. i had a friend who was doing it all day put some on marijuana, and when he smoked it he went into cardiac arrest. i had to give him cpr, which the emt told me saved his life.
i dont want to give out any false advice so dont take this into consideration but i would like a physician to correct me if im wrong or praise me if im right.

[caregiver222]

Street cocaine is often cut with dangerous substances, some of which cause permanent damage and long lasting injury. I would suspect your problems may have something to do with thjis.

[Roger Gould, M.D.]

Ask your doctor to think about prescribing higher doses of klonopin to slow you down and get you back into a normal state of mind.  Paxil can be stimlating, as can the other ssri's. What you have is a form of anxiety, with panic features, and smoking pot is really bad for you under these circumstances...You need your wits about you in order to regain a perspective on your life.