Why do i feel this?shooting chest pain, profuse sweating, dizziness&lightheaded, paniky, hyperventilating, insomnia, worry 24/7, avoid places cause of fear.

Need more info...: This could be many things with just the above: thyroid, respiratory, anxiety/panic, prior traumatizing experience(s), etc. You should see a doctor (soon) for an examination, possibly some basic tests, and possibly referral to a counsellor and/or medication, depending on what the dr learns when talks with and examines you.

Panic Disorder: It sounds like you are having panic attacks. See your physician for an exam and more details, and a diagnosis.

Panic disorder: You are probably suffering from severe panic disorder. You need thorough history, exam and proper treatment. This seems to be very disabling condition for you.