Inconsistent Poop. LFT not all right. Please help

[smurf4u]

I am 20. Male. From India. Weight : 48Kgs.
My symptoms are :
Stool Inconsistency. Solid at first and then I start getting loose sinking stools. Urge to poop just after meals. Black/Dark colored stools. Gas problem. Appetite is all well.
I get loose motions if I try to eat up anything spicy or oily. So I am just taking up CURD(yogurt) for the last 30 days or so.
1 thing to mention is that : My liver is very weak. I have suffered Jaundice for the last 2 consecutive years. When it happened the  for the first time, my bilirubin content was over 14 (7+7). The next time it was around 4 (1+3).

I have only taken up LFT till now.No stool test.
In LFT, My direct bilirubin was about 0.76 (should be < 0.2) and the alkaline phosphotase was 322 (should be < 175)
Rest everything was normal.
Doc has advised me to go for upper abdominal ultrasound.
I ain't taking any pills till now. Will contact a GE asap but any sols for the time being?

Note : http://www.medhelp.org/posts/Gastroenterology/Please-Help-me/show/1278697
I do have similar symptoms like mentioned above.

[patient915]

I would recommend getting stool testing and maybe a colonoscopy to look into the stool problem.  You should ask your questions about the liver in the liver disorders community.

[smurf4u]

Yes, my being underweight is an issue. Though for the time being, I am not concerned about my weight. Its just the liver which is causing problems from the last 2 years.
Can you recommend any pathology tests to be done for the inconsistent stool issue?
1 thing which I forgot to add in the above : I have never drunk nor smoked till date.

[patient915]

You're not just skinny, you are severely underweight.  Your BMI is 16.2 and normal is above 18.5.  You really need to see a doctor about this too and get your weight up.

[smurf4u]

Thanks for the reply :)
I am very skinny. I am 172cm in height.
and what all tests can I get done and can you recommend the  diet I should take?

[patient915]

Welcome to the gastroenterology community!  How tall are you?  It sounds like you need to get some testing done to figure out what is wrong.