I Immediately Bloat After Eating And Simethicone Doesn't Seem To

I immediately bloat after eating and simethicone doesn't seem to help. Also get left side pain in my stomach. My tongue almost feels like a hot\burning sensation especially when I eat\drink. What could it be? Prior3 days I felt sick and was burping rotten eggs,was real bloated, had a low grade fever, and felt wiped out