While your question is vague, let me say it is possible that you are so accustomed to feeling anxious, you don't pay attention to the anxiety but rather you have side effects that you notice. There are definite symptoms with the various types of anxiety. You can be anxious to others without realizing it yourself. What you describe as your side effects will make you wonder what is going on in your body. I say this because I have had definite symptoms that I "excused" for years only to finally be diagnosed with generalized anxiety disorder later in life. Please see your doctor to discuss your specific symptoms. God Bless.
Your question is very vague. Can you be more specific about your symptoms?