I haven't felt well for about the last year and a half. About the time I had a cavity filled with silver. My problems started with balance. Sitting or standing at times I felt I could fall over. Later it progressed to heart palpitations that would jolt me awake at night. I then developed anxiety and anxiety attacks. I didn't really buy that they were the problem, but more of just another symptom. Lately, the only symptoms (I say this because I did have a ton) I seem to have are extreme tiredness, the inability to exercise alot, feeling ill after eating, feeling like I could faint, head fog or feeling that my head is floating, inability to focus and pressure in my forehead. I'm 22 years old, not over weight and up until recently have been active. I'm getting tested for mercury toxicity because I had a filling fall out and I think I swallowed it a while back. I'm also possibly going to look into hypoglycemia, hypotension or pots. Any other suggestions or comments?