Need help doctor. Stomach problem.

Doctor 5 years before i had a severe tension which caused stomach problem. i lost weight and my bp was high. i visited different doctors but things  were worse. Then i met a great doctor and he said its all due to tension and anxiety whivh i developed without getting the right treatment. He also said that i hav develiped GERD and IBS. He treated my stomach as well gave me a temporary tension medicine. After two weeks he stopped tension  medicine. Then after 6 months i started to feel again problem of anxiety and stomach. But it was not like before. Now its been five years i struggled without medicine. Now i feel anxiety at night. And if in night my eyes will open and my stomach will feel gassy. Sometimes body gets very hot and sometimes cold. suddenly amd i will feel cold and i will find food. I feel like if i will not eat i will faint. As soon i eat i feel ok.