Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

My therapist in the past has asked about sharing journal entries to go into detail about what's going on. As much as I can. Some episodes of anxiety I go through I can't fully pinpoint either. It can be too complicated for me to break-it down.
I'm sorry you are feeling scared and feeling this way and hope you get some help/answers soon.