Anxiety

I don't know why, but I have been having anxiety and panic attacks since last night. I kept hyperventilating, my heart would start pounding, and I was feeling very nervous, for no apparent reason. I couldn't sleep last night. I finally took tylenol PM out of desperation, and today, I feel the same. I am sitting in my office, and I keep feeling like something is very wrong. I want to get out of here. I hate when I get this way, especially when there is no good reason for it.