I've felt like i've been on the verge of losing control of my mind or panic for months with physical symptoms such as headache and abdominal pain. it's caused me to avoid many things i would have enjoyed and unhappiness. what should i do?

Please seek care by a mental health professional. Cause may be physiologic, psychologic, or both. If you have a GP ask for referral for evaluation. If you don't have a GP, seek referral from an Urgent Care office.

Treat your anxiety/ panic disorder. Starting CBT or cognitive behavioral therapy with the help of licensed psychologist would help the most in the long range. Your primary care doc should be able to help and coordinate based on local and virtual resources.