Which probiotic strains did you try? Did you do anything else that worked?
I started with 1 a day and worked up to 3 a day over some weeks. I felt like crap for about 2 weeks. Like having a cold sick. Just no nose running and such. Then better than ever. Now I take one in the morning and one in the evening.
Oh and so I don't forget shortly after I also started keto. Real keto w/ less than 20g carbs. Did blood tests that confirmed I was in ketosis. That's the "and feeding them right" part. Did it for about a year which normalized all my off blood markers except for cholesterol which also improved but not below what is condered normal. Did it for a year. Now I no longer do keto but keep the sugar mostly away.