Thank you for your replies!

I actually have seen a number of doctors over the years and actively went to therapy for three years. This fear issue has persisted, but I actually had a bit of an epiphany after I started this thread - that what is burning in my body is actually the emotion, that energy that I'm not sharing with anyone! It's exactly as my therapist has advised me - that whenever I feel stuck with an emotion, I need to share it. Just call or text somebody right then and there and tell them how I'm feeling.. It's just that my fears seem so ridiculous to me that I've been too embarrassed to share them, but I'm going to have to swallow my pride in order to move forward..