Brief Answer:
Please give feedback and details.

Detailed Answer:
Hi.
Thanks for your query albeit short and specific.
Noted your history and concerns.
Your first stool is OK but second stool is loose and water.
May I please know a few details:
Since when ( for how long) you have this happening?
Have you got any other associated symptoms like bloating, pain in abdomen, nausea, vomiting or any other?
Have you got any medical problems?

If there are no associated symptoms or medical problems the reason may be:
The dinner you take probably has fast transit, not getting sufficient time for absorption of water to make the later part solidify before it is evacuated.

Please give feedback so that we can continue discussion.

---

Brief Answer:
Detailed clinico-pathological correlation as explained below.

Detailed Answer:
Thanks for your feedback.
The presence of the undigested food indicate the need for further investigations.
I would suggest you the following:
- Blood: routine CBC, thyroid function tests, Sugar fasting and after food, Liver function tests, and others as may be required after clinical evaluation.
- Urine: routine and microscopy
- Stool: for three consecutive days, it is better to tell the laboratory why are the tests done.
Contrast enhanced CT scan of the abdomen.
Colonoscopy.

These tests will help to get a proper diagnosis and plan a proper treatment.
The probably causes are:
Too much stress and anxiety also can increase the motility of the intestines.
Pancreatic insufficiency
Irritable bowel syndrome

There can be allergy to some foods or beverages; you have to make list of foods and beverages that you must have noticed to increase your problems and stop them altogether.
You have to make another list of the foods and beverages that suit you the most- and consume those only.

Please get all the relevant investigations done under the guidance of a Doctor, preferably a Gastroenterologist.

After all the investigations are done and clinical evaluation and examination done you may add on a pre-probiotic and pancreatic enzyme preparations.

I hope this answer helps you.

---

Brief Answer:
This may be a combination of many factors

Detailed Answer:
Which medicines are you taking at the moment and what are the dosages?
When was the last you have got your Free T3, Free T4 and TSH done?
A bit of overdose of thyroid medicines also can cause such problems and added are the problems related to stress and anxiety.

Pancreatic insufficiency means the secretions of the pancreatic enzymes is less than required hence less digestion and sometimes passages of the undigested food, hastening of the bowel movements.

Get all the tests done, please post the reports so that we can discuss further in details.

---