You're not alone. About a month ago out of nowhere I too began feeling some anxiety. It came on gradually. Then it hit Bigtime!!!!!!! I was having trouble sleeping and felt mildly depressed also. Again, for no reason whatsoever!!! I didn't think I was stressed either. Must be something in the water. I went to the Doc and he prescribed Attivan for a week. Helped out big time and I feel fine now. It was weird. Don't know why it came on??? Just remember to keep your cool. I know exactly how you feel...