My experience so far with probiotics

Hi everyone,
Not much activity in this group - here's what is going on with me:

I got interested in probiotics a while back as a possible way to boost my immune system and lose weight. I started with a generic yogurt that said probiotics on the label but I don't know much about it. After 2 days of eating the yogurt I got very uncomfortable like I was sick and my skin seemed irritated. It might have been coincidence but to be safe I threw out the rest of the yogurt. Then I returned to normal.

After about a month I got interested again and started taking capsules: "Primal Defense Ultra" from Garden of Life. So far, I haven't noticed any changes or side effects at all. Arguably, that's good, right? I'm going to keep taking this for a while and see how it goes. Since I started taking this capsule I haven't been sick and I am still losing weight, but I'm guessing the diet and exercise is the big factor there.

Anyone else have a better story than me?