Based on your symptoms, age, and weight, you need to be evaluated by your primary care provider or local emergency room department as soon as possible.
You may be dealing with diabetes
and complications of having a very high blood sugar
. Also, it could be a heart
issue (i.e. Angina
, etc.) or even something more simple like a urinary tract infection (uti). Regardless this must be addressed right away by a medical professional.
Good luck to you.