Unexplained symptoms after eating

Hi guys/gals,

I'm having a rough time these last few months. I smoke cigarettes and drink maybe once or twice a year on occasion. For the last few months, I've been waking up extremely nauseous within minutes of getting out of bed.
If I don't eat anything, I become extremely weak and dizzy and feel lethargic. If I do eat, about 15 minutes after finishing I begin to get extremely foggy headed, I get extremely tired in the afternoon and my breathing feels a bit labored. I also get mild shakes or a tremor type of feeling. Sometimes I get what feels like heart palpitations and feel extremely weak and wobbly on my feet. The best way I can describe this feeling is that by digestion steals all of my blood supply and the rest of my organs feels on the verge of shutting down. I have to try to remain calm and conscious all while trying not to puke. I also began to belch tons of air or gas which after belching maybe 100 times seems to help calm the symptoms a bit but they still persist for at least an hour or two. This happens no matter when or what I eat, large or small meals, it's all the same result. My bowel movement are like frozen yogurt and smell foul. Shortly after eating I also sometimes clear my throat and have this rubber cement like clear gel like sticky phlegm. Last week my lonely neighbor asked me if I'd hang out with him and BBQ for his B-day and have a few beers. I had 3 beers and plenty of water over about 4 hours. The next day, I awoke with the worst hangover that lasted nearly 3-4 days. I have no idea what's going on, blood work is all normal, heart checks out fine ect. Doctors have no idea. Can any of you with GERD relate? Any ideas or suggestions?

Post Edited (OrangeStarburst) : 10/28/2017 7:13:20 AM (GMT-6)

Thanks for the reply Straydog,

I try to eat well. Try to stay away from gassy foods, mostly fruits, lean meats, salads and greens ect. I can belch at will and get out any gas, most OC meds like GasX are Simithicone and I take a few of those. I've heard other people mentioning swallowing air but I don't understand what they mean or how to avoid that. When one bites into some food, that air is gonna be there regardless I would imagine. It seems not to matter not how little I eat, even crackers will do this to me. I tried ensures and nutrition shakes low FODMAP meals and nothing seems to help. My entire day is a roller coaster of debilitation. I lost my job because of it, it's so bad. Quality of life on a good day is 50% most days it's 10-20%. I physically feel like I'm dying. I don't get anxiety from it but it for sure stress's out my body because something is wrong and my body spends all it's resources staving off collapsing. There's nothing I can do to prevent the physical stress it's putting on my body, I don't feel it's mental at all. When most people talk about stress they refer to mental stress and have tons of techniques ect. for that, I can't find much on physical stress's. Thanks again for your reply Straydog!