i have been suffering from this deadly dissorder for oner 12 years the symptoms are odd and still extreamly scary. to this day i still end up in the ER when a bad one hits. my symptoms are (and im sure i will miss a few) dizzyness, lightheadedness,blurry vision ,rapid or slow heart rate,confusion,heart / chest pain,tight chest and throat,lack of oxygen,vomiting,pins and needles all over body,skiping heart beat,headaches,numbness in arms, leggs,face,hands,and lips. musckle weakness to the point i cant even stand or walk...the list can go on forever. im taking 3 medications to help controll it but everyday is a strugle. so for all sufferers....anxiety can cause so many odd and frightning symptoms, but most likely you do not have a serious health issue :).
I have had all of the symptoms you've described. I had my first panic attack back in April '08. It started with the room spinning and I felt like I was going to black out. Since then, I've experienced chronic lightheadedness, dizziness, cranial pressure, tingly, limbs, buzzing in my muscles, faintness, fatigue, heavy head, and yes, light, weak limbs.
I've had every test in the book done, from MRIs, to the whole spectrum of tests at the ENT. At any given time, I thought I had MS, cancer, neurological disorders, and blood problems. Once a neurologist told me that I suffered from anxiety, it was still a few months before I convinced myself that that was in fact the problem. Since then, I've begun attending therapy and started a medication.
I'm 25 now, and I've been coming to these forums for a few months now. I've noticed that there are a lot of cases of anxiety in peoples' twenties. It's a stressful time of your life, when you're trying to get situated with relationships, work, continued education, and a sense of where you are in the world.
You're going to have good days and bad days and don't get discouraged if it doesn't clear up in a few weeks. I've been suffering with my symptoms for 10 months and it's made me stronger than I ever thought I was capable of being. I've found that the best thing you can do is to stay busy. Persevereance is the key to beating this. Keep a positive attitude, stay healthy (exercise, eat well), and stay close with your friends and family. They're your best support. I think it's great that you've found this forum. It's done wonders for me, just talking about my issues and finding other people who can relate to them. You'll get through this, just like I will.
There's a quote I read somewhere that I always tell myself whenever I'm having a bad day: "The human spirit is stronger than anything that can be done to it." Good luck and make sure to post if you're having problems.