Please help, I need quick food allergy symptom relief.

This is my first post on cure zone. I have been an avid reader for about five years. I am reaching out in hope that someone has experienced any similar symptoms. I have been feeling very sick and am convinced it is an allergic reaction. I have a number of sensitivities to foods. I have only been strict about avoiding gluten(for about 2 years). I have been acting as if I have celiac though never diagnosed with it. I did well on The specific Carb Diet. TIme has passed and I went off the diet and I have been trying to reintroduce foods forbidden on SCD and those I was sensitive to before. Other changes are adding supplements. Some new foods to improve my digestion and also transition to a mostly vegetarian diet. Also I have been slipping off my planed regimen due to holiday socializing. The food I suspect is the main problem right now is coconut, I put coconut flour in my smoothie, gargle with the oil and cook with it. I have been using it more and more and is probably causing this reaction. My symptoms are body and joint pain and irritation. Chest pain burning in throat, low energy and weakness.
My question is do my symptoms sound like a food sensitivity if not what else should I be looking at? I am thankful for all replies and suggestions for me on how I can get relief from symptoms/ changes to make? Thank You. Tweet