What happens if i accidentally swallow (some) shampoo water when i am taking my bath? what happens to my body system? please help. am i in danger?

Ok: Should be ok in small amounts

Not dangerous: Swallowing a little soapy water while bathing is very unlikely to cause any harm.

Ok: If no symptoms should be ok. That small amount unlikely to cause difficulties.

NO, should be fine: Swallowing a small amount of shampoo water should be fine. In the future, try and keep you mouth closed while showering and shampooing your hair. Best wishes.