Hello Friend, Good that you are seeking a help here. All your symptoms are sign of anxiety. You may be thinking too much about future or exam or careers or relationships.. Such mind chattering can cause fear, insecure and panic attack and that's what you are experiencing now. However it needs further details to isolate the root cause. You may need a guidance of counseling support to figure out root cause for your anxiety and to explore the possible solutions.

Hi, you must see a clinical psychologist in your locality to help to identify the challenging thoughts.