How do i know which probiotics to take and what to expect from taking them? I used acidophillus strains in the past and felt completely bloated for 2-3 days then gave it up. I normally take agiolax before i go to bed and have a bowel movement next day, but still its not complete, i feel bloated throughout the day, like i am swollen allover or carying some tank of fluids within me. Am i supposed to expect some long term effects of probiotics? like after 10 days or so? do they have any effect against constipation? Is there a test to see which strains would do some good for my condition?Lately i have noticed a hard painfull mass (when i lay down in bed-before and after a bowel movement) at my lower right side of the abdomen, like at the point of small and large intestinal junction. I feel as if faeces get trapped there or are slower to form. When i put pressure on this point i feel pain allover my intestines. Last but not least, has anyone felt really really better from probiotics? Has anyone felt that his bloating went away on a steady basis? I feel bloated 8 yrs now. Terrible.