I have suffered aniexty for 5 years now on and off, i keep getting new sensations,every so often, but i feel anxious everyday, I am now getting muscle twitches even if i dont think about them, they just came on for no reason just like everything else i have had. I have had so many test over-time and everything comes back normal, I experience, shortness of breath, heart palpatations, lightheadness which i have had for almost 3 years, stomach aches, indigestion,bowel problems, basically constant worry all the time, and all tests i have done come back normal. Just wondering if anyone has or knows about this problem, and is medication the only thing to help it.It makes me so sick sometimes. i am only 29 and feel a lot older with all these symptoms.