I would recommend that you see a doctor and have these symptoms checked out further. You might have induced a bout of alcohol related hepatitis as one possible scenario. The liver rests just below the right side of the diaphragm. Inflammation of the liver could make you feel lethargic and could affect your diaphragm function on this side. Another possible scenario could be alcohol induced pancreatitis. I tend to doubt this as the likely problem as you would probably be sicker than you seem to describe and would be more likely to have significant abdominal pain with acute pancreatitis. Other aspects of this could fit as pancreatitis can cause an ileus(little or no bowel activity due to the inflammation ) which could make you feel bloated.Acute pancreatitis can even cause inflammation to greatly affect the diaphragm and may even cause pulmonary edema (fluid in the lungs). I repeat that your general description does not strike me as being of a severe enough nature to really highly suspect a bad episode of acute pancreatitis. There is enough in your description that I think warrants a good physical exam and some blood tests which I would include your blood counts, inflammatory markers, liver and pancreatic enzymes.
I hope this information helps. Further questions are welcome if you have others. I will be happy to get back with you if you have further questions. If my answer has been helpful and to your satisfaction then please remember to press the "ACCEPT" button. Thank you and Best regards,
Anthony Bray MD
You are young and presumably otherwise healthy. It may be that the heavy alcohol may have caused an ulcer or some gastritis to develop.
If you don't get regular strenuous exercise then you may be getting out of shape and this might be the explanation for you tiring easily with stairs and having a rapid increase in pulse and feeling short of breath. Anemia could also produce these symptoms.
Again, if this is an ongoing thing then i would recommend that you have it checked out.
I hope this helps. Best regards,