Dear guevarajosi,
I am not sure how long this problem has been going on. Regardless , the
problem seems to be serious enough that you need to follow through about
this as soon as possible. When you say that your stomach is getting bigger,
this could mean you may be developing fluid build up in your abdomen. The
condition is called "Ascitis". This could be a result of
liver problems related
to excess alcohol intake and damaged liver or it could be from inflammation
caused by virus infection-Type -B or Type-C
hepatitis virus. Dark stools
indicate bleeding either from the lower part of the
esophagus (Food tube) or
from the stomach lining due to small ulcers. If this has been going on for
sometime, you could be anemic (Low blood count) and hence loss of appetite
and weakness.
I strongly recommend you seeing the doctor soon and get all the necessary
testing done which will include blood tests, X-ray (CT-Scan) etc.
Wish you all the best